Please help 50 points to whoever answers, and brainliest to best answer

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price