5. Convert 212, to base 10.
A. 21210
B. 2310
C. 1210
D. 510

Answer this question! 30 points and brainliest!

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.

Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2