Which of the following is a term, variable, and expression?

5 x^2
21
h
ab

Select all the correct statements. the amount in dollars an electrician charges in terms of the number of hours worked is represented by the function y = 22x + 42. from the function, identify all the phrases that hold true for the situation. the electrician charges an initial fee of $22 the y-variable represents the number of hours the electrician charges an initial fee of $42 the electrician charges $22 for every hour worked the x-variable represents the electricians charges in dollars the electrician charges $42 for every hour worked

What are the domain and range of the function? f(x) = -4 (sqrt)x

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?