Casey has n number of movies in her collection. james has 1 1/2 times as many movies as casey. james has 42 movies. complete the equation that models the situation. then, give the value of n.

n=28

Step-by-step explanation:

Casey has n number of movies. James has 1 1/2 times or 1.5n movies. Since James has 42 then 1.5n = 42. Solve for n to find Casey's. Casey has 28.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6