Answer:
rate of change = 3
Step-by-step explanation:
to find the rate of change 
(0,-4) (1,-1)
=
= 3
Answer:
4 dollars
Step-by-step explanation:
5 minus 1 equals 4
The correct answe would be 4 all functions are at the same rate
Divide number of guitars by 100% and multiply into discount given
149/100 x 29
1.49 x 29
43.21
$43.21 had been removed
Therefore $105.79 is the guitar cost after discount
Hope it was useful ☻