Harley is 15 years less than seven times Marcy's age, so that means Haley + 15 = 7 * Marcy
Equation: (41 + 15) / 7 = 56 / 7 = 8
Marcy's age is 8.
Hope this helped =)
The answer is B(1,-2). This is the only point where the two lines intercept. & if you plug the numbers into the equations they fit.
Answer:
f(g(x)) = -1
Step-by-step explanation:

Multiply:
2 boxes x 5 packs each = 10 total packs
10 packs x 8 markers per pack = 80 total markers
Any: 80 markers