Ax 4 = e
b ÷ 4 = e
c + 4 = e
d - 4 = e

& a + b + c + d = 100

challenge
*what is the value of e ? *

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?