In math what is the GCF of of 4a and 9a^4?

What is the pattern 3 6.5 11 16.5 23

John is six years older than Bill. Two years ago John was twice as old as Bill. How old is John now.

Maria purchased a new jacket for 78.12. the orginal price of the jacket was discounted 20% and Maria had to pay 5% sales tax. what was the original price of the jacket?

Break apart and distribute to solve 56/8

What is the mean of this data set below?: 2/4, 18/5, 28/10, and 5/20

John Copeland sells tennis equipment. He is guaranteed a minimum salary of 1,500 a month plus 5.75% of his total sales. What is the correct set up to find John's total sales, s, for a month in which his gross pay was 2,075

Given f (x) = 17-18, find x when f (x) = 18

2 + (8-4) (4-8) / 3 + (-5-2)

1/5+1/5+1/5+3/5+2/5-2/5

Angie and her friends ate 3/4 of a pizza. Her brother Joe ate 2/3 of what was left / How much of the original pizza did Joe eat?