Which of these is an example of typing at a rate of 42 words per minute? A: 21 words in 2 mins
B: 84 words in 3 mins
C: 210 words in 5 mins
D: 400 words in 10 mins
Please help!

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?