What is x= (2/5) to the third power?

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 .

Write the sentence as an equation. 6 fewer than the quantity 140 times j equals 104

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7