I need help on all of them please

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle

Here is another math questions. i will keep asking different questions. 4^2x=6

Find the area between y=e^x and y=e^2x over [0,1]