-6<x≤8 would be the inequality
Let the cost of the hair dryer equal x.
The net cost plus a 40% markup equals 42, set up an equation and solve forex.
1.4x = 42
Divide both sides by 1.4
X = 42 / 1.4
X = 30
The net cost was £30
Thé transformation is that the function moved 6 units down
I think it is -37m+17 but I am not sure
