Which pair of ratios form a proportion? A. 2 : 3 and 3 : 4 B. 8 : 12 and 16 : 20 C. 4 : 7 and 12 : 21 D. 9 : 15 and 10 : 16

Simplify |2.35 - 4.89| + | 8.39 - 3.72 |

every day, katie looks for seashells on the beach. She has 28 shells in her collection. Katie finds 12 more shells each day. Write a quality to determine the number of days, d, it will take katie to collect over 100 shells.

Toms son works in a sports store. Toms son earns a commission. He makes 2.5% of the amount he sells. Last week, he sold $900 worth of shoes. How much was his commission?

What is the area of a trapezoid

Consider a triangular prism. The triangular end has a base of 3 cm and height of 5 cm. The length of each side is 7 cm and the height of the prism (length of the rectangle) is 12 cm.

Use the binomial series series to expand the function as a power series. 3 / ((6+x) ^3)

There are 5 water birds swimming in a pond. If there are 3 ducks and 2 geese at the pond, what fraction of the birds are geese?

16a-24=8 (2a-3) how do I solve this

Mr. Anson bought 3 student tickets that each cost the same amount and an adult ticket that cost $12. In all, Mr. Anson spent more than $36. Which represents the cost of each student ticket?

3c-d=tcould you solve for c