B is the right answer because a is too short and c and d are too long

<h2>
Explanation:</h2>
Here we have the following expression:

And the question asks for solving the equation for the variable
. So we need to divide both sides of the equation by
:

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Answer:
100
Step-by-step explanation:
10 + 45*2
10 + 90
100
Answer:
12.568m^2
Step-by-step explanation:
A=πr^2 where r is. radius
=3.142(2^2)
=3.142(4)
=12.568m^2
Answer:
x = -2
Step-by-step explanation:
f(x)= 5(x-2)
since, f(x)= -20
-20 = 5(x-2)
x-2 = -20/5
x = - 4 + 2
x = -2