Really need help on this

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

What properties allow transformation to be used as a problem solving tool