Amina sees a discount of 5% on a laptop. she can calculate the amount she has to pay for the laptop using the expression where b is the price of the laptop before the discount. if the price after discount is $494, which number from the set {500, 505, 510, 520, 525} is the value of b?

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes. she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?