Dave found that about 8/9 of the students in his class have a cell phone. What percent of the students in his class do not have a cell phone? Write your answer as a percent and as a decimal. Show work.

Which of the following ratios is equal to 14 : 21? (2 : 3) (1 : 3) (2 : 5) (1 : 2)

Roy had 20 apples. he used 2/5 of them to make pies, how many apples did roy use for the pies

Matt runs four days a week on the first day he runs 30 minutes. On the second day he runs 5 minutes more than on the first day on the third day he runs the same number of minutes as the second day on the fourth day he runs 10 minutes more than the

The tail of the spider monkey is 64 percent of the length shown. What is the length of its tail?

A game lasts 5/8 hours. Dale played 4 of the games How long did he play in total

1. In a city, 80% of the homeowners own at least one vehicle. Mr. Hanson will simulate by randomly selecting a sample of 30 homeowners.

On a compass due east is 1/4 turn clockwise from due north. How many degrees are in a 1/4 turn

Write an example of an equation for an exponential decay function

A rectangular field is 125 meters long and 75 meters wide. Give the length and width of another rectangular field that has the same perimeter but a smaller area.

In a poll of the students in mrs. Rodriguez's class, six say they leave within six blocks of school. This amounted to 20% of the class, how many students are in Mrs. Rodriguez's class?