Write an expression to represent the product of 6 and the square of a number plus 15. in your expression, what is the value of the coefficient?

A.) 1
B.) 6
C.) 15
D.) 2

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Having a hard time understanding this question (see attachment).

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.