A college student needs 10 classes that are worth a total of 35 credits in order to complete her degree the college offers both 3-credit classes and 4-credit classes which system of equations can be used to determine x, the number of 3-credit classes and y the number of 4-credit classes the student can take to complete her degree

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ