Answer:
its 1 and 3
Step-by-step explanation:
you can tell cant you
Y = mx + b
m = slope = -3
y = -3x + b
We need to find b, so plug 7 for x and 8 for y
8 = -3*7 + b
8 = -21 + b
Add 21
29 = b
So the equation is y = -3x + 29.
4+3+5=12
(5 is the hypotenuse of the triangle)
105/12=8.75
He burned 8.75 calories for each mile.