Answer:
40% increase
Step-by-step explanation:
c = final value - initial value
------------------------------------
initial value
112 - 80 = 32
32 / 80 = 0.4
0.4 = 40%
true
as negative takeaway a negative is positive so 8-(-4)= 8+4=12
6+16=5x
5x=22
x=22/5
x=4.4