I'm not sure about the answer, but this is how I would do it, since 15% and $150 are the same based on the question. do let me know if it's right! :)
Step-by-step explanation:

In this type of math equation, you have to multiply all members from the first part with the second part.
Expanded:

simplified:

Hi there!
When we have an equation standard form...

...the formula of the discriminant is
D = b^2 - 4ac
When
D > 0 we have two real solutions
D = 0 we have one real solutions
D < 0 we don't have real solutions
1.) Find the value of the discriminant and the the number of real solutions of
x^2-8x+7=0
Plug in the values from the equation into the formula of the discriminant

D > 0 and therefore we have two real solutions.
2.) Find the value of the discriminant and the number of real solutions of
2x^2+4x+2=0
Again, plug in the values from the equation into the formula of the discriminant.

D = 0 and therefore we have one real solution.
~ Hope this helps you.
Answer:
BF
Step-by-step explanation:
The answer is BF because the radius is from the center to the outer edge and that is the only one that does that.
in form of multiplication is
.
<u>Step-by-step explanation:</u>
We know that factors are the numbers that are being multiplied together . As 6532*7 = 45724 .Here 6532 & 7 are the factors and 45724 is product of the factors .
Here , we need to convert to the product of multiplication
a^2-b^2-4b-4 or ,
:
⇒
We know by identity that , 
⇒ 
Taking common term out as -4 :
⇒ 
Therefore ,
in form of multiplication is
.