THE ANSWER IS B! YOUR WELCOME!
Answer:
20
Step-by-step explanation:
Week 1: 4.23
———————
Week 2: 8.46
Week 4: 16.92
Week 6: 25.38
Week 8: 33.84
Week 10: 42.30
Week 12: 50.76
I can’t draw a graph on here but it’s basically a straight line.
Equation: y=4.23x
y is the amount of money she has at x weeks
She began with 20.
If she bought 7 more books and ended up with 17, that means she had ten beforehand. If she had half remaining, we simply double it, thus getting 20.
