A box of cereal contains 725 grams of cereal. To make a bowl of cereal. r, grams of cereal is removed from the box What equation models the relationship between the quantity of cereal removed, r, and the quantity of the cereal in the box, b? A: b = 725 - r
B: b = 725r
C: r= 725b
D: r = 725-b​

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.