The two rectangles above are similar. If b = 21 mm, and c = 26 mm, and d = 39 mm, what is the length of a?
A. 12 mm
B. 7 mm
C. 14 mm
D. 17 mm

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation:

h/o/e/s mad

step-by-step explanation:

si si si

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .