Please solve: (in a hurry)
will name the brainliest!!!
include steps!

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save