ms wilson purchased a welcome mat for her front porch that is a semicircle. the straight side of the mat is 38 inches. to the nearest inch, what is the perimeter of the mat?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

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?

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585