Answer:
10 years old
Step-by-step explanation:
The difference in ages is 60 -30 = 30 years. When mom was 4 times daughter's age, the difference in their ages was 3 times the daughter's age.
The age difference was 30 years at that time, so the daughter was 10 years old.
Answer:
*sum
Step-by-step explanation:
i am not sure. But I just wanted to correct it for someone else
Answer:
3.6
Step-by-step explanation:
3√13(3.6
-9
-------
66| 400
-396
-------
4
2 to 6 is one because angles can have different types