Factorise completely 9a^2-1

Loren is putting brick along both edges of the 21-meter walkway to his house. Each brick is 0.26 meters long. Loren is placing the bricks end to end. How many bricks does he need?

Beth and cade were on one team what was their total score

A package of blank CDs usually costs $8.50. This week it's on sale for 15% off. What's the discount? A: $.15 B: $.85 C: $1.28 D: $1.34

Which of the following are possible cross sections of a cube 1. square 2. rectangle 3. trapezoid

Tom bought $65.86 worth of books at the book fair. He got 12% discount since he volunteered at the fair. About how much did Tom's books cost after the discount?

Vector A and Vector B have the same direction, and they both have a magnitude of 6. What must be true about Vector A and Vector B? a. They are equal and parallel. b. They are opposites, but not parallel. c. They are opposites and parallel. d.

W is greater than - 8 and less than 8 using inequalities

Solve the linear inequality 4.2y+2.1>-2.52

What is the product of 5ab and (-2a²b) ³? -40a^6b^4 -30a^7b^4 -40a^7b^4 -30a^6b^4

How do I find the surface area of a a triangular prisim