The answer to the question is C
Step 1: Find the slope using :
Step 2: Plug the slope and one-point into point-slope form :
Let's use (4,1) since there's no negative involved. That makes it easier:
A) Toys R Us - 6.25 / 5 = 1.25
b) Walmart - 12.64 / 10 = 1.264
c) Target - 2.76 / 2 = 1.38
So Toys R Us has the best unit rate (cheapest)
You can write it either way.
56cm (1.84 ft), then 1.8ft, then 20in (1.7ft).