The answer is (-43/2,-35) you welcome :)
Answer:
Step-by-step explanation
Substitute 2y-1 for x in the second equation:
7x + 5y = -66
7(2y-4) + 5y = -66
then solve for y:
14y - 28 + 5y = -66
19y = -38
y = -2
Substitute -2 for y in the first equation:
x = 2y - 4
x = 2(-2) - 4
x = -8
The lines intersect at (-8,-2)
Answer:
59
Step-by-step explanation:
To find f(3), substitute 3 for x:

C= 213.63
C=2• 3.14(pie)•r(radius)