I need all 4 answer please, thank you.

30.48cm; 322.061km; 127.96m; 655.738ft

Step-by-step explanation:

A) since the denominator is going from a 1 to a larger number, you can just multiply the numerator across by however much the denominator is growing. The denominator is multiplied by 12, so just multiply the 2.54 x 12 = 30.48cm

B) you can use cross multiplication here. the 200 and 1 multiply to 200 on the left, while the .621 and n multiply to .621n on the right. 200 = .621n. Divide the 200/.621 = 322.061km

C) again, since the numerator is going from 1 to a larger number, it's being multiplied by the larger number. Here, it's multiplied by 140, so you can multiply the denominator by the same number. .914 x 140 = 127.96m

D) finally, cross multiplication again. the 200 and 1 again multiply to 200 on the left, leaving .305 x n for .305n on the right. 200 = .305n. Again, divide 200/.305 = 655.738ft

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

required rate of return = 0.166 = 16.6%

step-by-step explanation:

under the capital asset pricing model (capm), the required or expected rate of return for a particular security or asset is given using the formula:

required rate of return = risk-free rate + beta*(market risk premium)

we are given that;

risk-free rate = 4% = 0.04

beta = 1.4

market risk premium = 9% = 0.09

we simply plug these values into the above formula;

required rate of return = 0.04 + 1.4*(0.09)

required rate of return = 0.04 + 0.126

required rate of return = 0.166 = 16.6%