Which property is illustrated by the equation 3(x+4) = 3x+12

Explain why as well please.

A: associate property of addition
B: commutative property of addition
C: distributive property of multiplication over addition
D: transitive property of equality

Answer - C
Explanation - It is distributive property of multiplication over addition because you are distributing the 3 to the x and 4 which equals 3x+12.

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )