What is the amplitude of the function graphed?

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

6. sarah saved $12.75 every week for a number of weeks, w. she received an additional $25 during the last week in which she saved money. write and solve an equation to find the number of weeks, w, for which sarah had saved money if she has $114.25 now.

What is the midpoint of np if n (1,9) and p (-5-1)