Zachary's dad gave him $80 for cleaning out the garage. He used the money to buy a $14.50 book and three games that cost $8.20 each. Zachary also bought lunch for himself.

If Zachary went home with 1/4 of the money his dad gave him, how much was his lunch?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your