An inclined railway is 5412 ft long and runs up the side of mountain at an average incline of 19 degree. what is the gain in altitude? round to the nearest foot

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

What expression is equivalent to (2x-1)(x-3)?

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank