The width of a rectangle measures (3s+t) centimeters, and its length measures (3s-9t) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle? -16+12s
6s-8
12s+1-18t
12s-16t

Step-by-step explanation:

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2(3s+7) + 2(3s-9t)

= 6s +14 + 6s -18t

= 12s -18t +14

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

1 3 5

step-by-step explanation:

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