Which of the following expressions is always equivalent to - 2b + 4 + 4b - 7

a. b + b

b. b divided by 2

c. 2b - 3

d. 2b + 4

A 20 percent discount is offered on all sweaters at Store S. If a cotton sweater is on sale for $48, and a wool sweater is on sale for $64, what was the difference in the price of the sweater before the discount

Which are solutions of the equation 4x2 - 7x = 3x + 24? Check all that apply.

Paul and Tom both commute to work. Paul's commute on the train takes 15 minutes more than one third as many minutes as Tom's commute by car. It takes Paul 45 minutes to get to work.

Maple grove wants to include two types of maple trees, the namesake of the city, for their parks. Two varieties of maple trees have been selected. One variety costs $75 per tree; the other more colorful variety costs $90 per tree.

If the duck traveled 97.8 miles at top speed in 1.5 hours how far did it travel in one hour?

What is the slope of a line that is parallel to the line y = 3/4x + 2?

Analyze the graph. Which inequality represents the graph? y > x + 4 y - 3x + 4 y < - 3x + 4

If x = 2 calculate the value of x squared - x

Are 5/y² + 2 and 1 - 5/y² + 2y not quadratic expressions? Why?

Which expression is equivalent to 12x + 18y + 54?