Carly walks 30 feet in seven seconds. At this rate, how many minutes will it take for Carly to walk a mile if there are 5.280 feet in one mile? Round your answer to the nearest tenth of a mile.

john has 55 candy left.

answer:

a=9

step-by-step explanation: lmk if you need a explanation

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.