The last one is correct answer
Answer:
A=πr2
Step-by-step explanation:
Answer:
and 
Step-by-step explanation:
If two equations are given, we can solve one of the equation in terms of single variable and put it in the other equation which will further give the value of x and y.
For the given equations:
Equation:1
Equation:2
Solving equation multiply equation 2 with 4 on both the sides
Equation 3
Subtracting Equation:3 from Equation:1

Putting value of 'y' in Equation:2 which will give the value of x

Answer:
huh
Step-by-step explanation:
X/7-3=6
X/7=6+3
X/7=9
7x9=63
63/7-3=6
9-3=6
I would say choice “C”