Answer:
b = 2, GH = 9
Step-by-step explanation:
In this problem we have that

Solve for GH
-----> equation A
we have
-----> equation B
------> equation C
-----> equation D
step 1
Substitute equation D in equation C and solve for b




step 2
Find the value of GH
substitute equation B and equation D in equation A


substitute the value of b

Answer:
if it doesn't work im sorry
Answer:
A
Step-by-step explanation:
Go to the graph at 12 weeks and the line for Baby A is above Baby B.
Step-by-step explanation:

The function representing the graph is 5m+40