86.4
....................
Answer:
For example, 8f + 4g is one of the most used expression
Another example is 4 (2f + g), is correct too
$60
Step-by-step explanation:
3x20=60
r = 44
12 = r -(34-2)
12 = r -(32)
12 = r-32
r = 32+12
