When roller skating, Casey used 4 less than 3 times the amount of calories used by Gertrude while walking. Walking uses 5 calories per minute. How many calories are used each minute by roller skating?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.