Please help, I've been stuck on this for about 20min now I need to know part 1 and part 2

Since she has only $21 the total price has to be 21 so option A is correct and to solve for the number of stops she can afford just solve A for s by isolating s to one side of the inequality and solving.

Step-by-step explanation:

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: