Sarahs age is four more than twice her brothers age write two equivalent algebraic equations that can be used to find their ages

Step-by-step explanation:

Let her brother's age be x

Sarah = 2x + 4

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

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