Asolution must be 14% insecticide. to make 3/4 gallon of this solution, how much insecticide must you use?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost