Which of the following statements about perpendicular lines is true? a. perpendicular lines have a constant distance between them. b. perpendicular lines intersect at a 90 degrees angle. c. there is no standard symbol for perpendicular lines. d. perpendicular lines do not exist in the same plane.

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller

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.