Q5. tom buys three cds and two dvds.
write down an expression for the cost of tom's shopping.
use c for the cost of one cd and d for the cost of one dvd.

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.

Determine whether the statement is true or false

If f(x) = 5х – 2 and g(x) = 2х + 1, find (f – g)(x).