6x2 + 28x - 2 = 2x - 10

x=

x= -4

Step-by-step explanation:

Subtract 2x - 10 from both sides.

x= \frac{ -(26) +/ \sqrt{(676-4(6)(8)} }{2(6)}

x= \frac{ -(26) +/ \sqrt{(676-192} }{2(6)}

x= \frac{ -(26) +/ \sqrt{(484} }{2(6)}

x= \frac{ -26 +/ 22}{2(6)}

x= \frac{ -26 +/ 22}{12}

x=  \frac{ -26 + 22}{12}  = -0.33333333333333 = -1/3

x= \frac{ -26 - 22}{12} = -4

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.