In 1980 the social security tax was 5.83% up to a maximum of 25,900 if Nina earned $34,200 in 1989,how much did she pay in socia
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The answer is C and D
First we must make one side of the equation zero, so we subtract 7 on both sides of the equation, making the equation 9x^2 - 6x - 6 = 0
Then we will use the quadratic formula to find the answers.
using the Quadratic Formula where:
a = 9, b = -6, and c = -6
and the formula is 6 +-