Answer:
2x^2 - 2
Step-by-step explanation:
FOIL:
First outer inner last.
So we take (x-1) and (2x+2) and multiply the two first terms together.
2x^2
Next, we do the two outer terms.
2x^2 + 2x
Inner is next.
2x^2 + 2x - 2x
Then the last two terms in the equation.
2x^2 + 2x - 2x - 2
Then simplify:
2x^2 - 2
yes sure, i learned this before so
1. a. make a proportion here, of percentage. 
if you cross multiply and divide you get 90%.
1. b. obviously the empty seats would be 10%.
2. a. proportion again, 
cross multiply then divide you ge 15%
3. 30% in decimal form is 0.3. multiply it then to the total amount, so 0.3 x 15 = 4.5
C and D because of the hundredths and thousandths place
Answer:
Step-by-step explanation:
divide them
