Answer:
Step-by-step explanation:
Hence,
But,
Simplifying,
=
=
Hence,
Answer:C
Step-by-step explanation:
I had the same question
Answer:
Step-by-step explanation:
2915 can stay as it is; 15.458 should be rounded down to 15. Then we have
2915-15, or 2900 (which is a very reasonable estimate).
Step-by-step explanation:
2) 212*198 = 41 976
1) 80-37 = 43
2c + b = 37 ....multiply by -3
4c + 3b = 81
------------------
-6c - 3b = - 111 (result of multiplying by -3)
4c + 3b = 81
------------------add
-2c = - 30
c = -30/-2
c = 15 <== $ 15 for a can of paint
and it costs $ 7 for each brush