Having trouble on solving for r in the equation A=2 (3.14) rh

A collection of quarters and dimes is worth $18.30. There are 111 coins in all. How many of each coin are there? __ Dimes __ Quarters

Your friend brings 15 chocolate cupcakes and 15 vanilla cupcakes to school. Students will take turns picking a pair of cupcakes at random. What is the probability that the first student will pick 2 chocolate cupcakes?

A computer technician charges a one-time fee of $50 plus and additional $20 per hour of labor. If an equation is created to determine the technician's total charge, what does the $50 represent?

The first five multiples of 12 and 24

Mark and his three friends are out of Applebee's. Their total is 52.35 If they left the server a 20% tip how much would each person pay splitting the bill evenly

What is the 30% of 67,500.00

The area of a rectangle is 180 squared in2. The ratio of the length to the width is 5 : 4Find the length and the width. The length of the rectangle is nothing in.

What is the proportional relationship with the table? x 1 2 3 4 y 4 8 12 16 1/4 4 8

What is the final step in the problem solving process

0.35 0.15 0.05 0.05 as fraction