Answer:
4.5 miles
Step-by-step explanation:
2 times as far as last week
last week was 2.25 miles
2* 2.25 = 4.5 miles
<span>3x+2y+4+9y=
Combine like terms:
2y+9y=11y
I believe the answer is 3x+11y+4
(That is unless you know the numbers that y & x equals)</span>

No real solutions, because for all real numbers the square of number is greater or equal 0.
There are no like terms in 9u^2v because it is all one term and none of the variables are like one another.