Which is a better buy: 3 pounds for $3.87 or 5 pounds for $6.65?

Which expression is equivalent to 4 square root 6 divided by 3 root 2

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days