Donna put $450 into a 6-month certificate of deposit that earns 4.6% simple annual interest. How much interest did the certificate earn? $

answer: 414,377,008

step-by-step explanation:

just multiply it

the first one

step-by-step explanation:

just id the test.

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

step-by-step explanation:

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