How much tax do you pay on a purchase of
$145.00 if the tax rate is 7.5%

It's 155.875

Step-by-step explanation:

Using a multiplier:

145 × 107.5 = 155.875

the answer to this question is yes

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0