Shoe City is offering 15% discount on all pairs of shoes. If u also have an extra 20% off coupon, how much would a pair of shoes that are originally $68 cost after the discounts?

Standard deviation of 19,29,21,22,23

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?