1over 3 multiplied by b = 4 over 5 what is the value of b

The verbal translation for the difference of m and 7 increased by 15

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

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?