During a sale at a bookstore, joseph buys a book at full price. he is given a 50 percent discount on a second book of equal or less value. if joseph buys two books that have a full price of $15 and $10, by what percent is the total cost of the two books reduced during the sale?

Which function has the same domain as y=2x

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125