Find the domain of the rational expression 8-x/7x+21

The linear functionis defined by g (x) = 4x. a. Show that and have a difference of 4.

How to write 40+5/10

Karen is ten years older than Gary today. Two years from now, Karen will be three times as old as old as Gary will be. how old is Gary today. use algebra to solve

Blank % of 50 shirts is 35 shirts

2.5*10 to the negative power of 2

It took Lisa 2 hours to read the first 100 pages of a book. Then she read the last 44 pages in 1 hour. How many pages did she read per minute for the whole book?

Four friends are comparing the amount of dog food their dogs eat per day. Charlotte's dog eats 10.5 pounds of dog food in 12 days. Meiling's dog eats 15 pounds of dog food in 16 days. Amelia's dog eats 4 pounds of dog food in 6 days.

If a store advertised a sale that gave customers a 1/4 discount what is the fractional part of the original price that the customer will pay?

The perimeter of a is 80 cm. It's width is 4 cm. What is the length of the rectangle

Is 909,756 divisible by 4?