What is the GCF of 21 and 30

Gabe Amodeo, a nuclear physicist, needs 30 liters of a 60% acid solution. he currently has a 40% solution and a 70% solution. how many liters of each does he need to make the needed 30 liters of 60% acid solution?

Find the volume of a cone with a base diameter of 12in and a height of 9in. write the exact volume in terms of π, and be sure to include the correct unit in your answer.

Which equation has the same solution as 4-2 (x-5) = x-19

Select the correct answer for each statement. will yield consecutive odd integers: Possible answers: k+10, k+12, k+14 or k+2, k+3, k+4 will yield consecutive integers: Possible answers: k+1, k+2, k+3 or k+6, k+8, k+10

Larry baked 3 times as many sugar cookies as peanut butter cookies. He baked 96 cookies in all. How many did he bake in all

2 times as much as 4 is what

8.77 as an improper fraction

The perimeter of a rectangular playground shown is 140 feet what is the area of the playground if the length is 40 feet

What is the solution to 2h+8>3h-6

Solve w/7 > 3 A) w ≤ 21 B) w > - 21 C) w > 21 D) w < - 21