A stack of 102 nickels is 7.7 inches tall. A stack of 102 quarters is 6.9 inches tall. How much taller is a stack of 10 nickels than a stack of 10 quarters?

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.