Answer:
3/7
Step-by-step explanation:
7-4=3
Pi. I don't know what the square root is doing there because it has no number under it.
Answer:
The shadow of the building = 192 ft.
Step-by-step explanation:
∵ There is a proportional relation between the heights of the tree and the building and their shadows
∴ Height tree/height building = shadow tree/shadow building

x =
= 192 ft ⇒ x is the length of the shadow of the building
The mean of n numbers is the sum of the numbers divided by n.
You have a mean score of 84 after taking 5 tests. Let x be the sum of scores.

You scored a total of 420 points on five tests.
You need to have a mean score of 85 after taking 6 tests. Let y be the score you need to obtain. Your total score on 6 tests is 420+y.

You need to score 90 points on the sixth test.
Answer:
look where infinity you have to write 5
Step-by-step explanation:
1, line of infinity 5
2. 7 8
3. 6 2
4. 0 1
5
6
7.7 8, 2 5, 6 3