The answer for your question is c
Answer:
0.614
Step-by-step explanation:
Answer:
9. C
10. C
11. C
Step-by-step explanation:
9.
simply, 
10.
the greatest divisor of 28 is 7, so:
28 + 7 = 35
11.
the greatest divisor of 15 is 5, so:
15 + 5 = 20
n = 20
the greatest divisor of 20 is 10, so:
20 + 10 = 30
1-(1/5+2/3)
Get a common denominator
1-(3/15+10/15)
Add the two fractions together
1-(13/15)
Turn the 1 into a fraction
15/15-13/15
Subtract the two fractions
2/15 is how much of her allowance remains