Answer:
slope is 
Step-by-step explanation:
1,-1 -3,2 are two points on the graph
the equation to find slope is 
so 
or you can count how many places it changed in the equation 
Answer:
u need to put pictures?
Step-by-step explanation:
.......,??????
Step-by-step explanation:
7.50= (1 + x/100 ) × 5.50
7.50/ 5.50 = 1+x/100
x/100 = 0.36
x= 36.36%