Letty has $5.00 in nickels, dimes & quarters. she has 3 times as many nickels as dimes. she has 5 times as much money in quarters as she does nickels. how many of each does she have?

Driving 75 mph, it takes alicia 2 hours to reach the airport to go on a vacation. it then takes her 4 hours to get to her destination with the jet traveling at a speed of 400 mph. how many miles does alicia travel to get to her destination?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

What is the lcm of 16 and 40 ? 24 and 40 ?