It's the first oneeeeeeeeeeeeeee
I think it would be “ 130 + m = 170 “ I could be wrong tho
The score range that sally would have to make a 90 average is 85-100
Given

subject to the constraint

Let

.
The gradient vectors of

and

are:

and

By Lagrange's theorem, there is a number

, such that


It can be seen that

has local extreme values at the given region.
Answer:
y = 50x + 25
Step-by-step explanation:
y = mx + b