A water tank initially contained 114 liters of water. It is then filled with more water, at a constant rate of 9 liters per minute. How many liters of water are in the tank after 4 minutes? Round answers to the nearest whole liter.​

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?