Answer:
256
Step-by-step explanation:
two choices for each question so
2^8=256
Answer: D
Step-by-step explanation: i got it right
When you are looking for a unit rate in a graph you want to know how much the dependent (y) variable will increase by when the independent (x) variable is increased by one
Just use your right angled triangle formula.
A=

Plug n chug
A=

A=71.5