Bella and Heather put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes after a certain amount of time (x), in weeks, is shown by the equations below:
Bella: y = 25x + 60
Heather: y = 30x + 10
After how many weeks will Bella and Heather have the same amount of money in their money boxes, and what is that amount? (4 points)
a
10 weeks, $10
b
10 weeks, $310
c
9 weeks, $310
d
310 weeks, $10