Answer:
Yes
Step-by-step explanation:
It is A
Answer:
D. 
Step-by-step explanation:

Simply subtract the two functions from each other and simplify to get the result.
Answer:
Width: 7 Length: 10
Step-by-step explanation:
Width: x
length: 2x-4
Area: 70 meters squared
(2x-4)x=70
2x^2-4x=70
2x^2-4x-70=0
2(x^2-2x-35)=0
(x-7)(x+5)=0
x cannot be negative so x=7
Answer: 
Step-by-step explanation:
subtract by terms.
2x^2 - 7x^2 = -5x^2
-5x is the only term so leave it alone
-7-3= -10
-5x^2 -5x -10
Answer:
6 dollars per children ticket.
Step-by-step explanation:
Sorry if my explanation doesn't make much sense or you don't understand it.
700x + 300y = 7200
if, y = 10
700x + 300(10) = 7200
700x + 3000 = 7200
- 3000 = -3000
700x = 4200
700x/700 = 4200/700
x = 6