Answer:
4
Step-by-step explanation:
3n-2-n=6
2n-2=6
2n=8
n=4
Answer:
nearest tenth= 5.4
Step-by-step explanation:
55 ÷ 10.1= 5.44554455446.
Answer:
45 minutes
Step-by-step explanation:
97-52 = 45
Answer:
3000 books.
Step-by-step explanation:
Let x be total number of books.
3% is 3/100.
So:
3x/100=90
3x=9000
x=3000 books
30
2x12=24
0.5x12=6
24+6=30
hope that helps