(4 to the 2th power - 8 + 2 x 10) divided ( 3 to the 2 power - 5

What is sin 7x/4 ? i need on this urgent trig

What is the solution set of the quadratic inequality x^2-5< or equal to 0

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.