4x^2+8x=7
solve pls and show work : )

Indicate the formula for the following conditions: p^c(n,r)=

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount