Acircular walking path has a diameter of 45 yards. what is the distance around the walking path

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect