Last year, Sara's piano teacher charged $40 per hour for private lessons. This year, the teacher increased her rates by 10%. How much is the teacher charging per hour for lessons this year?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

If a || b and e || f , what if the value of y ?

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?