help asap! i’ll give brainliest

Answer:
question 4. The right answers are 1,3 and 4
Question 5. No they are not balanced.
Step-by-step explanation:
1.
7/9 * 8 = 6 2/9
56/9 = 6 2/9
2.
8 + 11.5 = 20.5
19.5 ≠ 20.5
3.
23.42 - 8 = 15.42
15.42 = 15.42
4.
11 * 8 = 88
88 = 88
5.
40/8 = 6
40/8 ≠ 6