51*39*28=55692
55692*95/100=52907.4
52907+3455.75= 56363.15
55692-56363.15=-671.15
671.15 cm of water spilled out of the tank
Answer:

Step-by-step explanation:
Let
x ----> the average depth of the resulting layers of ash and rock
we know that
To find out the average depth, divide the cubic kilometers of molten rock by the area where all the ejected material fell.
so

Convert to meters
Remember that

so

Convert to mixed number

- It will be option A.
- x - coordinate is 1. If we multiply 3 with 1, it will be 3. And if we multiply 3 with 3, it will be 9.
- y- coordinate is 1. If we add 3 with 1, it will be 4. And adding 3 with 4, we get 7.
<u>Answer:</u>
<u>a- (1,1) (3,4) (9,7)</u>
Hope you could get an idea from here.
Doubt clarification - use comment section.
Step-by-step explanation:
both halves of a diagonal must be equal.
so,
8b - 30 = 6b + 6
2b = 36
b = 18
and
9a - 13 = 5a + 5
4a = 18
a = 18/4 = 4.5