Charles paid $398.57 for a new computer. He knew that the total included about 28$ in tax. What is the approximate percentage of the total that was tax?

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.

What is the approximate value of the correlation coefficient for the given graph? a. 1 b. 5 c. 3 d. -1

Which expression is equivalent to 5a/4 - b/8 ?