12a + 12b + 12c + 12d
Michael writes the expression shown here as 12(a + b + c + d). He is correctly using the property.

A) associative
B) commutative
C) distributive
D) symmetric

C. Distributive.

Step-by-step explanation:

This is the distributive property.

We take the common factor out and the a b c and d go into the parentheses.

Another example  is:

3x + 12 = 3(x + 4).

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm

answer: the answer is   graph (a)