Digits on the right are like units and digits on the left are like tenths
Answer:
c is the answer
Step-by-step explanation:
20+64=84 40+44=84 74+10=84 30+54=84
Answer:
or 
Step-by-step explanation:
Step 1: Factor left side of equation: 
Step 2: Set factors equal to 0:
or 
Get your answer:
or 