Please help! the length of the algebra 1 textbook is 11.6 inches

a) find the GPE

b) Find the maximum and minimum lengths

c) if the width of the textbook is 8.7 inches what is the maximum area of the cover?

d) if the height of the book is 3 inches what is the minimum volume of the book? (if the book were hollow)

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.