Rectangle phone is 20 inches wide and 25 inches tall and enlargement of that photo is 32 inches wide and 40 inches tall with a scale factor being used in large the photo 0.625

1.6

1.28

0.78

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0