Ineed quickly.

the base and the height of a rectangle are represented by the expressions below.
base= x+4 height= x-6
the perimeter of the rectangle 88 units. find the lengths of the base and the height of the rectangle.

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?