Mary has postcards and stamps. The ratio of the number of postcards to the number of stamps she has is 2:9. If Mary has 36 stamps, how many postcards does Mary have?

Mia had $32. Then she started to receive $5 a week as an allowance. She plans to save all of her money for a bicycle and draws a graph of her planned savings.

A science class has a total of 28 students. The number of males is 10 more than the number of females. How many males and females are in class

Sarah has a box containing x ribbons and 4 extra ribbons. jill has 12 ribbons. Express the number of ribbons that sarah has in terms of x.

What value is equivalent to 32 + 5 x 2 - 8?

What is the answer to 7x-51=4x

What is - 12x - 9+24x+4=43

An old nickel has doubled in value each decade. What is the value of the coin after 10 decades? a. exponential growth or exponential decay (choose one) b. answer:

Write the equation of a line perpendicular to y=1/2x + 8 that passes through (4, 9).

A chemist is using 364 millimeters of a solution of acid and water. if 16.8% of the solution is acid, how many millimeters of acid are there?

Harriet plans to file using Single federal income tax return with her husband. Together, they made $145,000 last year. They also received $500 in interest from a CD they own together. They have no children.