While back-to- school shopping Grentchen bought a binder for $4, 2 packs of pencils for $2.50 each, and a backpack for $19. if the sales tax rate is 8%, how much did Gretchen pay altogether?

Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. she sets up a tape measure and throws the yoyo 3 times. her data are charted below. throw length of string (feet) 1 3 2 1.8 3 1.08 jessa wants to find the sum of the length of string after 10 throws. what is the sum of the lengths, rounded to the nearest hundredth?