Which is bigger, 70% of 200 or 3/4 of 160

Can someone me out here number 4 plz

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

Which is the graph of this function 3 square root of x plus one if