Evaluate 3 squared times 3 cubed

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3