Can somebody me

a stock bottle of medication contains 500 mg of drug used in compounding other medications. you used 125 mg for one prescription and 62.5 mg for a second prescription, while the third prescription was for a child and only 25.25 mg were necessary.

a. what quantity medication had been used?

b. what quantity of the original medication is left?

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Emma recently found out she was pregnant. every thursday evening for the next six weeks, emma and her mother will attend a special program that prepares pregnant teens to become mothers. during the first class, emma learned about the stages of childbirth. what was the order she was taught? first, emma learned about  .then, she learned about the    stage. next, emma learned about  .last, she learned about the    stage