Are x + 4 and 2 (x + 2) equivalent expressions? Explain your reasoning

Suppose a pendulum is l meters long. the time, t,in seconds that it tales to swing back and forth once is given by t=2.01

Can any one me with the answers to these questions asap?

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area