Answer:
n=11
Step-by-step explanation:
19+n=30
n=30-19
n=11
1/10 = 10/100
So we need to find 10% of 300.
0.10 x 300 = 30
Because tax is an additional charge to the original amount therefor it is simply an increase
Answer:
336x + 624
Step-by-step explanation:
We need to convert the mixed fractions into improper fractions.
1*8 = 8
8+7 = 15
15/8
2*3 = 6
6+1 = 7
7/3
Now we can finish and multiply

15*7 = 105
8*3 = 24
Simplify 105/24
105/24
24*4 = 96
105 - 96 = 9
4 is the whole number, and 9 is the numerator.
4 9/24
Simplify that,
9/3 = 3
24/3 = 8
4 3/8
Answer: