Classify the expression 7x3 + 2x2 − 9 as a monomial, binomial, trinomial or polynomial.

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate. in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years