Sandra pays a matching game. In order to advance to the next level, she must score at least 10 points. She scores 18 points for correct matches and -6 points for incorrect matches. Did Sandra make it to the next level? Explain.

Sandra made it to the next level.

Step-by-step explanation:

Given: To advance to the next level, points required = at least 10.

She has scored:

Points for correct matches = 18

Points for incorrect matches = -6

Combined points = Points for correct matches + Points for incorrect matches

= 18 + (-6)    

= 18-6 = 12 > 10           [(+)(-) =(-)]

i.e. Sandra made it to next level.

Hence,  Sandra made it to the next level.

if you was gonna solve for a, a is a   < -12