Step-by-step explanation:

I think, he made a mistake because the exponents have different values but then if you'll look at his results, he just wrote the same thing. If you want, you could post the original problem, and I'll solve it for you :)
59,000,000? I'm honestly unsure.
Speed = m x t. as the equation
the rate for 5 cans for $3.70 is 0.74
the rate for 10 cans for $4.10 is 0.41
so the better buy is 10 cans for $4.10 at sams
There’s no answer choices to answer