Alicia borrowed $3,000 from the bank at a rate of 12% simple
interest per year. How much
interest did she pay in 4 years?
( STEP BY STEP EXPLANATION PLEASE )

1,440

explanation: multiply the loan/principal by the rate and amount of years

**remember to turn the rate into a decimal, then multiply

**12% = 0.12

3000 x 0.12 x 4 = 1,440

1,440 = simple interest

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation:

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