Question

I need help with the last answer (were the arrow is)

Answer 1

427.5

Explanation:

(45 x 5) + (45 x 4.5) = 427.5

Answer 2

225 calories

Explanation:

As seen on the graph, where 1 minute passes by, 5 calories are already burned. So, the rate of change is 5. Being that someone is hiking for 45 minutes, you multiply 45 by 5 and get 225... hope this helps :)