Oh no i dont know what 1+1 giving brainliest to the person so smart they know what it is

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

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