Melissa went to lunch with two friends. She purchased 3 corn dogs, 2 fruit cups, and 3 drinks for $15. One of her friends bought 1 corn dog, 2 fruit cups, and a drink for $9. Her other friend
spent $12 on 3 corn dogs and 2 drinks. Which of the following systems of linear equations could
be used to find c, the cost per corn dog, f, the cost per fruit cup and d, the cost per drink?
3c + 2 + 3d = 15
C+2f+d=9
3c + 2f = 12
3c +2f+d15
c+2f+d=9
3c + d = 12
3c + 25 + 3d = 15
C+2f+d=9
3c + 2d = 12
3c + 2 + 3d = 12
C+2f+ d 15
3c + 2d = 9

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?