Question

PLEASE ANSWER THIS QUESTIONS ITS REALLY URGENT! ​

Answer 1

Step-by-step explanation:

6) = 4/9 × 8/27

= 0.13168

8) = 7/12+(-5/6)

= 7/12-5/6

= 7-10/12

= -1/4

= -0.25

9) = 3a-9b+6a-10b

= 9a-19b

10) 5x-15=20

5x = 35

x = 7

Hope it helps

Answer 2

Step-by-step explanation:

8. 7/12 + (-5/6)

lcm of denominators is 12

= 7-10/12

= -3/12

= -1/4

9. 3a-9b + 6a-10b

= 3a + 6a - 9b -10b

= 9a - 19b

10. 5(x -3) = 20

=> x - 3 = 20/5

=> x - 3 = 4

=> x = 4 + 3

=> x = 7

11. 3/10 × 49/54 ÷ 14/15

= 3/10 × 49/54 × 15/14

= 7/24 ( Cancellation )