Select the correct answer. Which function is an odd function?
OA. f(x)= cos( – 21 x)
O B. f(x) = csc(-320
f(1) = sec (573)
OD. f(x) = cos(4x)
OC. f(t) = sec

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

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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.