A bird food company sells its box of birdseed to the pet shop for $1.89. The pet store uses a 55% markup. What is the pet store price for the box of birdseed?

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?

Sketch one cycle if the cosine function y=2cos2theta

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.