Calvin can fill 9 bags in 6 minutes part 1 :
create a double number line to represent the Calvin's speed from 0 to 6 minutes

part 2:
1) how many bags can calvin fill in 4 minutes?

2) how long will it take calvin to fill 3 bags?

3) what is Calvin's bagging speed? how many does he bag per minute?

no

step-by-step explanation:

the answer is 11.2 (i know i’m late)

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15