Skylar's grades on four math tests are 85, 78, 77, and 69. what does skylar need to score on the next test in order to have a mean score of 80? a) 83. b) 90. c) 91

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Vertical angles must check all that apply

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.