Answer:
no estoy segura como se debe responder
1 (x + 2y = -20) ----> x*2y= -20
-1 (x + 3y = -27) ----> x-3y= 27
(0) x + (-1) y = 7
ANSWER i think its c Step-by-step explanation:
If Gail practises swimming for 1 and 1/4 hours a day, then in a week she'll do:
1 1/4 * 7 = 5/4 * 7 = 35/4 = 8 3/4 [hours]
In other words she'll practice 8 hours and 45 minutes a week (assuming that she's still practicing on weekends).
Answer: 
Step-by-step explanation:
Given: Original length =
inches
inches ( In improper fraction )
Length of piece cut from original =
inches

inches ( In improper fraction )
Length of piece leftover piece = (Original length ) - (Length of piece cut )

Hence, the leftover piece will be
long.