A rectangle has a width of 2x + 1 and a length of 5x - 4, which expression would represent the area of the rectangle?

A pyramid-shaped building is 63 ft tall with a square base that is 81 ft on each side. What is the volume of the building in cubic feet? In cubic yards?

What is 3000000 as 10 raised to a power.

New Hampshire has a population of 1,323,459. Its territory can be modeled by a triangle, as shown in the figure. Each unit on the coordinate grid represents one mile. Find the approximate population density of New Hampshire.

One number is 12 more than another number. the sum of the two numbers is 70. what are the two numbers

Two acute triangles are similar. Which of the following must the similar triangle have? A) every pair of sides and angles congruent B) at least one pair of congruent sides and one pair of congruent angles C) congruent corresponding angles and

The circus sets up chairs in rows with 9 seats in each row will need to be set up if 513 people are expected to attend the show?

What is the degree of the polynomial f (x) = -4x^3+5x-2

How to simplify - 4minus 4

What is the volume of a 60 cm long and 50 wide tank

Tess earned 52 dollars for 4 hours of shoveling snow and 71.50 for 5.5 hours shoveling snow how long would she have to shovel snow to earn 39 dollars