Which student correctly translated the phrase "twice the sum of a number cubed and nine" and evaluated it for r = 3?

Step-by-step explanation:

The given statement can be translated to

Where is the number.

Notice that "twice" is a general product that must cover the whole sum.

If , then we solve

Therefore, the student who got 72, that's the right one.

Step-by-step explanation:

twice a sum

twice a sum of a number cubed and nine

evaluated for r =3

so,

hope this helps

brainliest appreciated

good luck! have a nice day!

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce