Answer:
18 gallons of water
Step-by-step explanation:
Answer: -6
Step-by-step explanation: 7 + -6 = 1
:\
X= be coffee
Y=be donuts
Set up equations
10x+5y=16.50
5x+10y=14.25
Now multiply first equation by -2 to get a negative
(-2)10x+5y(-2)=16.50(-2)
-20x-10y=-33
Now put both equations to solve for x
-20x-10y=-33
5x+10y=14.25
___________
-15x. = -18.75
Now divide -15 bith sides to get x alone
X= -18.75/-15
X= 1.25
The cost of each coffee cup$1.25
4b^2 - 16 =
4(b^2 - 4) =
4(b + 2)(b - 2)
