Answer:
We need more information please.
Step-by-step explanation:
You can do 9/1 x A
2 x (9/0.5 x B)
9/0.25 x C
so 9A + 36B + 36C
(9 x 50) + (36 x 80) + (36 x 120) = 450 + 2880 + 4320 = $7650
Answer:

Step-by-step explanation:

Find the sharing components:
<=> 
Apply the inverse of associative property:
<=> 
Identify two square components inside the parenthesis:
<=> 
Factorize:
<=> 
=> Option D is correct
Hope this helps!
:)
Answer:
x-19
Step-by-step explanation:
x-9-
x-10 =
x-
x-19
If you minus 9 and then minus 10, you are deducting 19 from the equation in total
x-
x-19 =
x-
x-19
You would want to make the denominator of the fractions the same by multiplying the first fraction by 2, and the second fraction by 3 so that both denominators are 6.
x-
x-19 =
x-19
Now that their denominators are the same, you can directly do the working for the numerators (4-3=1) and keep the denominator the same. Tada!