4. a tank containing 35 gallons of water is leaking at a rate of 1/4 gallon per minute. write an expression to determine the number of gallons left in the tank after m minutes.

Number of gallons left in tank after m minutes

Step-by-step explanation:

Given:

A tank containing 35 gallons of water.

Total water in tank = 35 gallons

In 1 minute = gallons

In m minute = Rate of Leakage in tank in m minutes

By using Unitary  Method we get,

Rate of Leakage in tank in m Minutes =

Number of gallons left = Total water in tank - Rate of Leakage in tank in m Minutes =  

Number of gallons left in tank after m minutes

if you mean

then it's c. 8, -7/3

but if you mean

then it is