5 times of her age is added to 7 times of her age before 5 years​

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.

Solve the system of equations. y=3x-1 and y=-2x+9. show work

If the square of a positive integer is added to 2 times the integer the result is 48. find the integer.