X+Y=100

4.5X+20Y=822

Elimination, graphing, and substitution methods.

Factor completely - 7x2 + 14x - 21. -1 (x2 - 14x + 21) -7x (x2 - 2x + 3) -7 (x2 + 2x - 3) -7 (x2 - 2x + 3)

To multiply fractions do you need a common denominator

A rectangular countertop has a perimeter of 24 feet. its area is 27 square feet. what are the dimensions of the counter?

Whats smaller 0.5 or 0.2?

Evaluate 4x when x=2

YOur dinner at a resturant costs $13.65 after you use a coupon for a 25% discount. You leave a tip for $3.00. HOw much was your dinner before the discount?

Find an equation equivalent to r=6secθ in rectangular coordinates and describe the graph of the equation.

A construction company is laying concrete for a new building. The company has 4 dump trucks with 1.15 tons of gravel each, and 2 dump trucks with 0.7 tons of sand. How many tons of material will the company use for the new building?

Find amount of tips on a 75 bill if a 50% tip is left

What is 5x - (8x+9) + 4.5x