Doubling the sum of steve's and sophie's ages gives 38. if sophie is 10 years old, how old is steve?
a. 4
b. 28
c. 14
d. 9

Aphoto of a painting measured 13 x 17 inches the scale of the photo to the original painting is 1 inch to 3 inches. what is the size of this painting

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?