Every female bear has 3 baby cubs. What is the constant of proportionality for the ratio of cubs to female bears?

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

Which of the following represents the range of the graph of f(x) below

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?