Which expression is equivalent to 2.2 - 2.5? a. 2.5 - 2.2 b. 2.2 + 2.5 c. 2.2 + (2.5) d. 2.2 - (2.5)

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?