Alex is fishing from a small boat. His fishing hook is in the water 13 feet directly below him. His fish finder indicates there is a group of fish at about that same depth, but about 17 feet from his boat
How far is the group of fish from the hook? Select the two answers that apply:
-21ft
-square root of 458 ft
-30 ft
-11ft
-120ft
-square root of 120 ft

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

What is the first step of an indirect proof of a number that is divisible by two