Dif a cube has a volume of 512, the perimeter of one face of the cube is

Ineed asap.i cant understand this question i need someone to me right away

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.