The cost of 4 new tires was $521.84 after a 6.5% sales tax was added. what was the cost of the 4 tires before sales tax was added? (a) $449.99 (b) $469.99 (c) $489.99 (d) $499.99 (e) $519.99

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.