8. A public swimming pool holds 250,000 gallons of water and is being drained at a rate of 200 gallons per minute. The function g = -200m +
250,000 represents how many gallons remain in the pool g, after any
number of minutes m. How much more water remains after 5 minutes than
after 20 minutes?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Can someone me and explain..will award brainlest!

In one month jillian made 36 local phone calls and 20 long-distance calls what was her ratio of local calls to long-distance calls for that month?