Two cars are traveling in the same direction. the first car is going 40 mph and the second car is going 55 mph. the first car left 3 hours before the second car. which equation could i use to solve to find how many hours it will take for the second car to catch up to the first car?

Which expression is equivalent to the expression shown?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

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?