Rebecca wanted to buy a book at the book store for $3.70, including tax. She
reached into her piggy bank and pulled out a handful of coins, all dimes and
quarters.
Let d represent the number of dimes and q represent the number of quarters.
Which expression below describes how many of each coin she would need to
have in order to have at least $3.70?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?