The perimeter of a rectangle is 42 inches if the width of the rectangle is 6 inches, what is the length? 12 inches
15 inches
21 inches
40 inches​

15 inches

Step-by-step explanation:

Perimeter is 2l + 2w (or l+l+w+w)

Start by subtracting: 42 - 12. The 12 is from 2•6 for both width sides.  

42-12=30

Divide 30 by 2 to find the length for one side. 30 ÷ 2 = 15

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

5/12, or 5: 12

step-by-step explanation: