Ravi has some money. If he buys 40 doughnuts, he will have $5 left. If he buys 50 doughnuts, he will need another $15. How much does one doughnut cost?

1. A company was studying the demographics of their customers. As part of the study, they collected the following variables: marital status, credit rating (low, medium, high), annual income, and age.

Carol rolled a dice 150 times she rolled a six 29 times Use carols data to estimate the probability of rolling a six with this dice Give your answer as a fraction

Find the mode of the data set 7,12,15,4,23,15,25,9

If you separate all the clubs from a deck of cards and pick 3 of those 13 cards, what is the probability that the cards are jack, queen, and king in ascending or descending order?

What is the value of the expression - 13 - (-41) ?

Factor out the greatest common factor from the polynomial 9x-27y+9=

What strategy would use to divide 36 by 6 explain why you chose that strategy

At a concert 5/9 of the people in line are girls. 2/3 are wearing glasses, what fraction of the people are wearing glasses?

A vine is 5 inches long. The vine will grow 2 inches a week. Which function represents the length of the vine after n weeks?

What characteristics are true for all linear, exponential and quadratic functions A The range of the function is all real numbers, B The graph of the function has no intercepts c) The graph of the function is always increasing D) The domain of the