the cost of a limited edition baseball card increases from $20 to $40. What percent did the price increase by?

Factors and how to find them

Suppose a 90 percent confidence interval to estimate a population proportion was calculated from a sample proportion of 18 percent and a margin of error of 4 percent. What is the width of the confidence interval?

You decide to treat yourself to some of your favorite cookies. The box that you bought has 24 cookies. You eat 2 cookies each day as a snack. Which equation shows the number of cookies that you have left at the end of each day?

My number is a multiple 5. It is less than 100 and has a factor of 6. What is my number

12 is what percent of 30?

A regular pentagonal prism has a height of 12 in. and base edge length of 8 in. Identify its lateral area and surface area. L = 576 in2; S = 700.2 in2 L = 480 in2; S = 590.1 in2 L = 480 in2; S = 700.2 in2 L = 576 in2; S = 590.1 in2

An uncooked gingerbread cookie is y centimeters long. After it is baked, the length of the cookie increases by 25%. Which expression best represents the new length of the cookie? A. 0.25y B. 0.75y C. 1.25y D. 12.5y

Lin has 13 coins in her pocket that equal 40 cents. All the coins are dimes, d, and pennies, p. Which combination of coins does Lin have? Use the table to answer the question.

What is the answer to 6x=5x+15

Billy plays outside for a half of hour how mintues billys played outside