What is the measure of each angle in a regular polygon with 4 sides

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.

Which expression is rational? 6. , square root two, square root 14, square root 49

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent