Which equations are correct? select each correct answer. 5x3(6x4)=30x7 4c4(3c2)=12c8 3b3(−2b4)=−6b12 5y4(2y5)=10y9

D

Step-by-step explanation:

We have to find which equation is correct in give options

A.

Hence, option A is wrong.

B.

When base same in multiplication then the power will be added.

Hence, option B is false.

C.

Hence, option C is false.

D.

Hence, option D is  correct.

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450