Solving Exponential and Logarithmic Equations Answers

What is the solution to

The atmospheric pressure at sea level is 14.7 lb/in2. This pressure is reduced by half for each 3.6 miles above sea level. Which graph correctly identifies the amount of atmospheric pressure based on height, in miles, above sea level?

What is the value of x if

What is the value of x if

What is the solution to

The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. Noise in a quiet room is 500 times as intense as the threshold of sound. What is the decibel measurement for the quiet room?

What is the value of x in the equation below?

What is the solution to the equation below?

The graph shows the growth rate of a certain bacteria in a lab, where the number of bacteria depends on the number of hours since the start of the experiment. Based on the graph, what is the approximate number of bacteria after 16 hours?

The population of a town grew from 20,000 to 28,000. The continuous growth rate is 15%. The equation represents the situation, where t is the number of years the population has been growing. About how many years has the population of the town been growing? Use a calculator and round your answer to the nearest whole number.