The sun of two number is 23. their difference is 9. write a system of equations to represent the situation. what are the two numbers?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

How do i find the missing angle measure in a polygon