Three fifths of david's coins were nickels, 20% were quarters, and the rest of the coins were dimes. if he had $20.00 in quarters, what was the amount of money he had?

After reading 80% of her e-mails in her inbox, danette still has m unread e-mails. which of the following expressions could represent the number of e-mails danette had in her inbox before she started reading? choose 2 answers: (choice a) 5m (choice b) 1.8m (choice c) 80m (choice d) m/0.8 (choice e) m/1−0.8

Convert 3,200,000 to a scientific notation.

Astandard doorway measures 6 feet 8 inches by 3 feet. what is the largest dimension that will fit through the doorway without bending?