Peter needs eight boards 4 inches long to make a fence for his train display if he cuts them out of one board what length Board must he buy?

answer: 414,377,008

step-by-step explanation:

just multiply it

125 yards

step-by-step explanation:

i take 75 plus 50.

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

1 mph

step-by-step explanation:

if the question is asking how much does she drive per mile then,

13 / 13 = 1 mph