A car travels 175 miles in 4.5 hours. They made one stop for gas that took 30 minutes. How many miles per hour did the car travel?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?