Find two consecutive even integers such that four times the first plus three times the second is 20

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?

It says factor each expression completely 8y+48

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?