Which equation could represent "the total cost of bananas at the store that sell for $0.89 per pound" where b is the number of pounds of bananas and C is the total cost?
A. C(b) = 0.89b
B. C(b) = 0.89 + b
C. C(0.89) = b
D. C(b) = 0.89 - b

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