I will mark brainliest! answer quick please!
1. 11/18 + 2/9
2. 5 5/6 + 3 2/5
3. 3 1/3 + 4 1/2
4. 11/18 - 1/6
5. 5 3/4 + 2 11/12
6. 5 1/2 - 1 2/7
7. 13/15 -2/5
8. 7/10 - 1/4
9. 5 3/4 - 2 11/12
10. 4 1/2 - 3 1/3

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Which of the following is the correct ratio for converting kilograms to grams

(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 .