In a year, there are 4 months that have 30 days. What is the ratio of the months with 30 days to the months with other than 30 days?

A, 1 to 3

B, 3 to 1

C, 1 to 2

D, 2 to 1

b

step-by-step explanation:

b

180

step-by-step explanation:

it would take 7/10 of an hour too fill the pool.

step-by-step explanation:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.