Bruce has 97 sports cards. 34 of them are football cards. which equation can be used to find the number of sports cards y that are not football cards

9514 1404 393

Step-by-step explanation:

a) The area of the picture is the product of its dimensions:

  (18 cm)² = 324 cm²

__

b) The area of the board is 4 times that:

  board area = 4×324 cm² = 1296 cm²

__

c) The dimensions of the square board are the square root of its area:

  √1296 = √(4×324) = (√4)(√324) = 2×18 = 36 . . . . cm

The board is 36 cm square.