Answer:
The slope (m) = 1/3 and the y-intercept (b) = -4
$12 for 3 pies = $4 for 1 pie
$10 for 2 pies = $5 for 1 pie
store A is the better buy
Answer:

Step-by-step explanation:

The woman will have to invest 40000 at .15 to earn 6000 a year in interest. that leaves her 40000 to invest in a cd.
I set this up...
6000/x=15/100
cross multiply giving you 600000=15x
divide 600000 by 15 for x.
40000
40000 from 80000 leaves 40000 for investing
Answer:
20.61952
Step-by-step explanation:
hope it helps