Sarah and bryan went shopping and spent whot total of 47.50$. bryan spent 15.50$ less than what sarah spent. how much did bryan spend?

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.

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1