Write an expression that is equivalent to the following:

x+x+x+x-20

A bargain bin contains hip-hop and jazz CDs. There are 80 CDS in the bin. choosing a jazz CD and not choosing a jazz CD have the same number of favorable outcomes. How many jazz CDs are in the bin?

Rebecca has 45 coins, all nickels and dimes. The total value of the coins is $3.60. How many of each type of coin does Rebecca have?

Dave is painting a wall in his living room a bright red color. so far, he has painted 1/5 of the wall and has used 1/2 gallon of paint. how many gallons of paint does he need to cover the entire wall

Ms. Smith purchased ½ of a pound of grapes. She would like to make 112pound portions for this week's snacks. How many portions will she be able to make?

There are 2 major roads from city x to city y and 4 major roads from city y to city z. How many different trips can be made from city x to city z passing through city y?

How do you write 2.5 as a percentage

James has 16 balloons. ¼ of his balloons are red. How many red balloons does he have.

Which number is the approximate for 47 and - 23

Solve the inequality 7x ≥ - 7

The scale drawing of a window is 1 inch by 2 inches. The actual size of the window is 24 inches by 48 inches. What is the scale factor that is used to make the drawing?