Unit Test — Cumulative exam Answers

What is the value of the expression below?

Mike paid $18.00 before taxes for 5 photo albums. His sister wants to buy two of the same type of album. What amount should she expect to pay before taxes?

Yuuma applied the steps below to find the product of (–10.2)(–16.4).Step 1: (–10.2)(–16.4) = (–16.4)(–10.2)Step 2: = (–16.4)(–10) + (–16.4)(–0.2)Step 3: = ____________Step 4: = 167.28Which expression correctly fills in the blank in Step 3?

Sun estimated the quotient of –23.514 and –3.98 by rounding each to the nearest integer. Which equation shows the correct estimation?

This graph models the number of teachers assigned to a school, as determined by the number of students. What is the constant of proportionality?Number of Teachers

Diego cut 7 smaller boards of equal length from a board that is feet long. How long is each of the 7 smaller boards?

What is the quotient?

The price of a gallon of gasoline dropped by $0.08 on Wednesday and by a quarter (0.25) of that amount on Thursday. Which best represents how the price of a gallon of gasoline changed on Thursday?

In the world’s coldest freezer, sodium gas was cooled to a temperature of 78.5°C below zero and then cooled 194.65°C more. What was the new temperature of the sodium gas?

What is the simple interest value missing in the table? Principal$2,500Interest rate3.5%Time5 yearsInterest?

Genevieve is buying a car audio system that consists of a stereo, speakers, and amplifiers. She is choosing between 5 types of stereos and 2 types of amplifiers. If she has a total of 30 choices, how many types of speakers must there be?

Kyoko is reading a book by her favorite author. She read the first 20 pages in of an hour. Reading at the same pace, Kyoko wants to determine if she’ll have enough time to finish the book before she has to go to bed.Reading TimeAccording to the graph, which statement must be true?

What is the product of ?

If the relationship is proportional, what is the missing value from the table?xy–39–5?–721

Lenore borrowed $400 to pay for car repairs. She needs to pay it back in 2 years with simple interest. Lenore wants to figure out the interest rate of her loan. What additional information does she need to find the interest rate?

Shane is trying to figure out how much one magazine would cost if 12 magazines cost $36. Shane did the math and got $45 as the answer.Is Shane’s answer reasonable?

Carmen is simplifying the expression . She recognizes that 0.93 and 0.07 will combine to equal 1, so she would like to find that sum before she adds 6.21. Which property will allow Carmen to do this without changing the value of the expression?