Gus bought a pair of sunglasses for $45.00 and then sold them to his friend for $58.50.

what percent did gus mark up the sunglasses before selling them?

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.

What is the equation of the parabola with focus (-1,-1) and directrix y=1?