Let the DVD = x
let the CD = y
x+y = cost
Answer: The answers are 13. (A) and 14. (B).
Step-by-step explanation: The calculations are as follows:
(13) The given equations are

In the attached figure (a), these two lines are drawn. We can see that The lines intersect at the point P(8, -9). So, the solution to the pair of equations is (8, -9).
Thus, the correct option is (A).
(14) The given equations are

In the attached figure (b), these two lines are drawn. We can see that The lines intersect at the point Q(7, -2). So, the solution to the pair of equations is (7, -2).
Thus, the correct option is (B).
The greatest number of robots: 74999
The least number of robots: 74499
Answer:
means that ab=c
Step-by-step explanation:
Answer:
can't be determined
Step-by-step explanation:
we would need to know the total number of bars/chips he brought