The equation that shows it is The third equation
Answer:
200 in^2
Step-by-step explanation:
First step- the first square shows the lenght and the bottom shows the width and 10 times 10 is 100
step 2- so the first is 100 double it and 100 times 2 is 200
Step 3- so 200 inches^2 is your anwser.
Answer: D.) Variable
explanation: “Variable, In algebra, a symbol (usually a letter) standing in for an unknown numerical value in an equation. Commonly used variables include x and y (real-number unknowns), z (complex-number unknowns), t (time), r (radius), and s (arc length).”