A leaky valve on the water meter overcharges the residents for one gallon of water in every 2 1/2 months . The overcharged amount w varies directly with time .

A leaky value on the water meter overcharges the residents for one gallon of water every 1 1/3 months. The overcharged amount w varies directly with time t find the equation that models this direct variation how many months it will take for the residents to be overcharged for 9 gallons of water?

Step-by-step explanation:

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of