Answer:
=x^-2
Step-by-step explanation:
Math is really important in life. it can help you with your jobs. it also helps you at school. it also helps you with figuring out the perimeter of your house.
10x3=30 hours
30/4= 7.5 hours to study for each exam
Answer:

Step-by-step explanation:
we have

Multiply by
both sides


Adds
both sides


140*.20=28
140-28= $112
so, the current price is $112