21/80 in a simplified fraction

Round 3.5218 to the nearest tenth

What math problem equals 18

The meanings of "h" and "k" in vertex form.

A store owner buys cell phones for 40.00 and marks up the price by 25%. explain how to find the price at which she sells the cell phones.

Needing to find answer for using digits 1 to 9 no more than once to create three fractions that are close but not equal to zero one half and one as possible

Rafael earned a salary of 34,944 last year. How much did he earn per month? A.$416 B.$4992 C.$672 D.$2912

What is the solution to the quadratic equation? y = x^2-4

Sunny earns $12 per hour delivering cakes. She worked for x hours this week. Unfortunately, she was charged $15 for a late delivery on Tuesday. How much money did Sunny earn this weekend?

One track coach wants her athletes to race 2 miles around a track to measure how fast each person can run? If the track is 2/3 of a mile around, then how many laps around the track will athletes have to run to complete the race?

Which of the following is a composite number? 48 67 13 31