Which of the expression can be used to find the area of a square with a side length of 1/3 m

Which of the following is the true for f(x) = 5cos

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

If a || b and e || f , what if the value of y ?