Simplify each expression. Justify each step.

4 (x + 9) + 5x

In certain county, the number of charter schools is 4 less than twice the numbervof alternative schools. We know that there are 48 charter schools in the county. How many alternative schools are in the county?

Mary bought a used car for $3,500 which was financed for $160 a month for 24 months a) what is the total cost of the car b) how much is the finance charge

What six time twentyone

During a construction project, heavy rain filled construction cones with water. The diameter of a cone is 12 in. and the height is 27 in. What is the volume of the water that filled one cone? Enter your answer as a decimal in the box. Use 3.

There are 321 visitors at the library. Each library table seats 12 people. How many tables are needed to seat all of the visitors? (Explain the process of how you got your answers)

A car drove 148 miles using 4 gallons of gasoline. How many gallons will it take to drive 9 1/4 miles?

1. Describe a situation in everyday life where negative numbers are used.

48 guests are attending the super bowl party. 6/8 of them attended the party last year. How many guests are attending the party for the first time?

For what value of c is the rational expression below undefined? x-3/3+x

9% percent are in the band. the band has 180 members. how many people are in school