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cordie is putting a stone border around the edge of her pool. the pool measures 15 feet by 24 feet. if cordie installs the border all the way around the edge of the pool, how long will the stone border be?

39 feet
78 feet
360 feet
720 feet

78 feet

Step-by-step explanation:

For this problem, you need to figure out the perimeter, so:

15 x 2 = 30

24 x 2 = 48

30 + 48 = 78

78 feet is the correct answer

15 + 15 + 24 + 24 = 78 feet

5y

step-by-step explanation:

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.