Colby and sarah sold newspapers this past summer. colby earned $4.50 for each newspaper he sold. sarah's earnings were $35 less than colby's at the end of the summer. the following expression shows sarah's earnings: 4.50y − 35 in the expression, what does the variable y represent?

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function