What is the value of 5k + m when k = -3 and m = -9?

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

Lucy spent $165 in december using a new credit card. in january, she began paying between $15 and $25 each month towards her account balance.