Answer:
3x=63
Step-by-step explanation:
3 coins means a coin is x and total expenditure is equal to 63
40 % out of 80 for red
20% out of 80 for blue
Answer:
A: 
Step-by-step explanation:
After graphing the equation, the highest point is (-1,-2). Since f(x) is the 2nd number in the coordinates (x, f(x)), the range is 
Answer:
-20 gallons per minute
Step-by-step explanation: