25 + 35 = 60
300/60 = 5
the answer is 5 packets
Her brother is 8: 8 x 2 is 16, and 16 + 8= 24.
Y= 13x+4x
y equals the amount of money spent
10 to 11 = 1 hr
11 to 12 = 1 hr
12 to 1 = 1 hr
total = 3 hours
Part(A):
To solve the system of Linear equations using Substitution:

Consider the first equation, x+y=7 implies x=7-y













PArt(B): Use a graph to verify your answer to the system:
Using Desmos graphing calculator, graph the two equations.