If a circle has a diameter of (x+3) inches, what is its circumference?
a. (x(pi) +3(pi)) inches
b. (2x(pi)+6(pi)) inches
c. (x+3)(pi) inches/2
d. (xsquared+6x+9) inches

Option A.

Step-by-step explanation:

diameter (d) = radius (r) × 2

r = d / 2

r = ( x + 3 ) / 2

Now,

Circumference = 2 × π × r

Circumference = 2 × π × ( x + 3 ) / 2

Circumference = π × ( x + 3 )

Circumference = xπ + 3π inches

answer:   14

step-by-step explanation:          

pu you stank bo u ugly bo lol

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.