Show that each of the following values for the given variable is a solution to the given equation. Show the calculations that lead to your answer.
(a) 5x+2 = 12
for x = 2
(b) = 6
for x = 15
(C) x1 - 2x = 8
for x = 4

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

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