What is the mathematical answer to this equation

-3a+9=3a-9

If a ribbon is cut into 8 equal parts then how many parts would three people get if it was divided equally?

Aarons heart beats 166 times in 120 seconds. Callie's heart 88 time beats 88 times in 60 seconds. Emma's heart beats 48 times in 30 seconds. Galen's heartbeat 22 times and 15 seconds. Which two students heart rates are equivalent?

A pilot flew a 400-mile flight in 2.5 hours flying into the wind. Flying the same rate and with the same wind speed, the return trip took only 2hours with a tailwind

What is the evaluate expression of r+3

How do you tell whether the percent of a number will be greater than, less than, or equal too the number

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?