Suppose students' exam scores are normally distributed with mean j = 65 and standard deviation o = 10
What proportion of the students taking the test score at most 80?
a) 0.95
b) 0.07
c) 0.14
d) 0.99
e) 0.93

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.