Because 3+3+1= 7 which is the same number 3+4 is equal to. Another reason is any number can be broken down into smaller numbers that equal the whole.
Answer:

Step-by-step explanation:

hope this helps you.
Answer:
19.1
Step-by-step explanation:
13²+14²=365
√365≈ 19.1
5x+12=37
X=5
Hope u do well on the test
Answer:
2100 second
Step-by-step explanation:
4:30 pm to minutes
4 × 60 + 30 = 240 + 30
= 270 minutes
5:05 to minutes
5 × 60 + 5 = 300 + 5
= 305
4:30 to 5:05
305 - 270
= 35 minutes
35 minutes to second
35 × 60
= 2100 second