1.)simplify the expression: 4 times start root 18 end root plus 5 times start root 32 end root 2.)simplify the expression: 7 times start root 5 end root minus 3 times start root 80 end root 3.)simplify the expression: start root 21 end root times left parenthesis start root 3 end root plus start root 14 end root right parenthesis. 4.)simplify by rationalizing the denominator: start fraction 4 over start root 10 end root minus start root 6 end root end fraction i will make you the brainiest!

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%