Graph the system of equations. then determine whether the system has no solution, one solution, or infinitely many solutions. if the system has one solution, name it. y= -6x + 6 y= 3x - 3

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle