A bag has 16 quarters, 33 dimes, 21 nickels. What is the probability, expressed as a percent of randomly selecting a nickel from the
bag?

Three times the difference of federico’s age, and 4, increased by 7, is greater than 37. what are possible values of federico’s age?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

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?