For 15 weeks, sue put the same amount of money in a jar. then she took $9 out to spend on a friend's birthday present. she had $21 left. how much did she put in each week?

Which expression is rational? 6. , square root two, square root 14, square root 49

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.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2