$56,990 with a interest rate of %50 with a extra 4,000 comes into Dolan’s account every 2 weeks, how much will he have if he waits 3 years?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day

Why is x= 4 a solution to the proportion 14/x 56/1 6