Help me please if you can't don't touch it

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Susie wants to take her friend out for lunch. she wants to spend $9.75 each person. how much will she spend in all.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.