Unit Test — Cumulative exam Answers

Gregory sees an $80.00 jacket on sale at 30% off. How much will it cost after a 7% sales tax is applied?

Jack works at a sporting goods store and makes a commission of 20 percent. His sales for each week are shown below. How much did Jack make in total in commission during all four weeks?WeekSales1$3,0002$2,5003$3,5004$4,000

Breanna set up her media player and created a graph to show what she saved on it. What does point A represent on the graph?

Carly withdraws $18 from her bank account. Which number line represents this amount?

Vicky records the low temperature for three consecutive days. Between the first and second days the temperature increased 6 degrees. Between the second and third days the temperature decreased 3 degrees. On the third day the low temperature was –6º. What was the low temperature on the first day?

How do the expressions and compare when they are evaluated?

Which is equivalent to “12 chairs for every 3 tables”?

Charla is finding points on a number line. Which point could represent ?

What is the quotient?

Aimee noticed her plant grew of an inch every week since it sprouted. She created this graph to show its growth.Which statement about Aimee’s graph is true?

A set of cards contains the numbers 1 through 20. Mathieu chooses a card at random, records the number of the card, and then returns the card to the set. He conducts 200 trials of this event. Based on the theoretical probability, how many times can Mathieu expect to choose a multiple of 5?

Sales tax in Birmingham, AL, is the highest in the nation at 10 percent. Pete paid $9.44 in sales tax for an item in Birmingham, AL.PercentsTotal10%10%10%10%10%10%10%10%10%10%100%$9.44$9.44$9.44$9.44$9.44$9.44$9.44$9.44$9.44$9.44 What was the price of the item before tax was included?

Jasmine created this spinner to predict whether a randomly selected student in her school will be traveling during the upcoming holiday break.Is the Student Traveling?Jasmine’s spinner is designed to reflect data she gathered by surveying 36 students in her gym class. How many of the students Jasmine surveyed indicated they would be traveling during the holiday break?

What is the percent increase when 7,200 increases by 1,800?

Mike and Julie are making slime. The table shows the number of drops of blue food coloring and the number of drops of red food coloring they use in each batchDrops of Food ColoringNumber of blue dropsNumber of red drops20440860128016What is the constant of proportionality of the ratio of the number of blue drops used to the number of red drops used?

Holly earns $30 for babysitting 5 hours. She earns $28 when she does chores for 4 hours. Which compares the unit rates?

Jamaal knows that it is certain that he will win the election because he is the only person who is running for class treasurer. Which value represents the probability that he will win the election?