The measures of two complementary angles are 7x + 10 and 3x - 20. Find the measures of the angles. HELP

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

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.