Which equation demonstrates the distributive property? a) 15 + 40 = 55 b) 15 x 40 = 40 x 15 c) (3 + 8)5 = 5(3 + 8) d) 15 + 40 = 5(3 + 8)

In the diagram, gef and hef are congruent. what is the value of x

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).