Sam is is mixing chemicals during a chemistry lab. she adds a 60% acid solution to 10 ml of a solution that is 10% acid. how much of the acid solution should sam add to make a solution that is 50% acid? show work.

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

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.

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)