My question now: do you know how to use associative and commutative properties on that equation

(previous answer given to me: you will need 9 and 3/4 for the 13 pairs of butterfly wings. if you were doing that, the total price would be $78.)

step-by-step explanation:

i think its about 8

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm

3xy cannot be combined with the others

2x, -5x and x are like terms