Dont see any answer choices... but Volume= L*W*H
A cube, the sides are equal. So 13^3 or 13*13*13 = the volume of the cube. Then work your way to the rectangular prism.
Answer:
they should buy three more for the 5th grade to match the 4th grade
20 = 2 x 2 x 5
15 = 3 x 5
common divisor (CD) of 20 and 15 is 5 so n should be 5 and each group has 4 boys and 3 girls.
If there are more than one CD, then there are more than one answer.
If they ask for the largest number of groups, greatest common divisor (GCD) will be the answer.
14.50 times 0.20 = 2.9
He would give a $2.90 as a tip of 20% from a bill of $14.50
so, 25 whole watches and hmmmm just the wristband of another maybe.
