The price per gallon of gasoline at a truck stop increases by 21% over the course of a year due to a shortage of oil. The following expression represents the price per gallon of gasoline, in dollars, after t years. 2.15(1.21)^t

Write an exponential expression in the form (b)c that reveals the monthly rate of increase of the price of gasoline. Round any decimals to the nearest thousandth.
(b)^c

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Combine the information in the problem and the chart using the average balance method to solve the problem.