Phred has already graded 40 papers and he still needs to grade more. write an equation for how many papers he is grading if he continues to grade 4 papers a minute.

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Asinusoidal function whose frequency is 1/6pi

If np3 /nc2 = 6, find the value of n