Answer:
23. 8n - 9
24. 55 - 45n
25. 69a - 10
26. -30m + 33
27. -4 + 96x
28. -8n + 26
29. -25b - 20
30. -71n - 9
Step-by-step explanation:
23. -2n - 9 + 10n
Collect like terms
= 8n - 9
24. 10 - 45n + 45
= 55 - 45n
25. 9a + 60a - 10
= 69a - 10
26. -54m + 27 + 6 + 24m
= -30m + 33
27. -10 + 90x + 6x - 60
= -4 + 96x
28. -10n + 20 + 2n + 6
= -8n + 26
29. -30b - 30 + 5b + 10
= -25b - 20
30. -7n - 21 - 8 - 64n
= -71n - 9
3:5
60:100
90:150
120:200
15:25
150:250
180:300
210:350
Answer: 8,230,472,011
Explanation:
billions: __8
millions: 230
thousands: 472
ones: 011
6+18=24+16=40 Top one 3+3=6+8=14
Easy by adding
Q.1 Answer is 9
Q.2 Answer is 0.04
Q.3 Answer is 11/12
Q.4 Answer is 3/2
Q.5 Answer is 1/12
Q.6 Answer is 3/5
Q.7 Answer is 1
Q.8 Answer is -15
Q.9 Answer is 10
Q.10 Answer is 108
