Guys please help me i will give brainliest to the one who answers correctly​

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

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.