9514 1404 393
Awesome T-shirts; the order is for more than 20 shirts
Step-by-step explanation:
The cost of "t" t-shirts at Awesome will be ...
A = 80 +2.50t
The cost of "t" t-shirts at Walden's will be ...
W = 50 +4.00t
These costs are equal when ...
A = W
80 +2.50t = 50 +4.00t
30 = 1.50t . . . . . . . . . . . . subtract 50+2.50t
20 = t . . . . . . . . . . . . divide by 1.50
If the order is for more than 20 t-shirts, the lower per-shirt price at Awesome will mean the total cost is lower at Awesome. Kristen is planning to order 100 t-shirts, so will get a lower price at Awesome.
The theoretical probability is 1/2 and the experimental probability is 4/5
If you want them to be closer alike the you would need to do more trials