Mike is a veterinarian. He is placing a nine-line job ad for an assistant. The following piecewise fun gives the price of an x-line ad. a(x) = {45 When x ≤ 3

{45 + 9(x-3) When x ≥ 3

A. Find the difference between the cost of a two-line ad and the cost of a three-line ad.

B. Find the cost of a 10-line ad.

C. Find the cost of a 11-line ad.

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Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?