The drain in your 45-gallon bathtub is partially clogged, but you need to take a shower. the showerhead had a flow rate of 2.25 gallons per minute, but the bathtub only drains at a rate of -0.5 gallons per minute. what is the longest shower you can take?

  25 minutes 42 seconds

Step-by-step explanation:

The tub will fill at the rate of ...

  2.25 gal/min - 0.50 gal/min = 1.75 gal/min

It will take ...

  45 gal/(1.75 gal/min) ≈ 25.714 min

for the tub to fill.

You can shower for about 25 minutes 42 seconds.

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

1/800 is the right answer