Jun has a salary of $4,500 each month. he pays income tax at a rate of 24%. How much income tax does jun pay each month

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?