Answer:

Step-by-step explanation:
Given



Required
Her salary in that month
Given that she spent
of her salary on shopping, this implies that she has
of her salary left
From what's left, she gave her sister 
This means she gave her sister 
Sister = 
Calculating a fraction of what's left




Recall that she has Rs11,040
This means that

Multiply both sides by 




Hence, her salary for that month was Rs23000
Answer:
1,440 degrees (10 interior angles of 144 degrees)
Step-by-step explanation:
Answer:

Step-by-step explanation:
using the properties of logarithms, the log of a product gives the addition of logs, and the log of a quotient gives the subtraction of logs;

Answer:
The height of the building that casts a shadow of 78m meters is 39m
Step-by-step explanation:
Let height be represented by H and the shadow is S
as they are directly proportional
H
s
H=KS ( where K is a proportionality constant)
H=2.5m , S= 5m
On substituting in the equation
2.5 = K*5
K= 0.5
Now the equation becomes
H = 0.5*S
Height when shadow is 78m
H= 0.5*78
H= 39m
Answer: wym and need more info like a pic or so
Step-by-step explanation: