9mph because 20 minutes time 3 is one hour so multiply 3 by 3 to get 9
Answer:
90
Step-by-step explanation:
5x – 2y + (7x – y)
Combine like terms
12x -3y
Let x = 7 and y = -2
12(7) -3(-2)
84 +6
90
Answer:
12 ??
Step-by-step explanation:
Answer:
5x+4
Step-by-step explanation:
use the equation mx+b I think this is right but I really dunno
