A box contain 54 coins which are either 20-cent coins or 50-cent coins. If the total value of all the coins is $20.70,find the number of 20-cent coins in the box.

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?

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x