100+4200 is 4,300
4,300+50 is 4,350 if you rounded that to the nearest 10,000 it's 10,000
Explain cause I think you're missing something from the question
Answer:
12 45 67 88 90
Step-by-step explanation:
Answer: 5
Step-by-step explanation:
Since, According to the BODMAS, when we solve an expression,
We follow the following sequence,
1. Bracket/ parenthesis
2. Of
3. Division
4.Multiplication
5. Addition
6. Subtraction
Here, the given expression is,

Thus, solving the given expression by following the BODMAS,
We get,
Step 1. 
Step 2. 
Step 3. 
Step 4. 5
1 foot = 12 inches
12 1/2 or 12.5 inches
18 and 3/4 or 18.75 X 12= 225
The ratio is 12.5:225 or to simplify 1:18.