In algebra, 4a is a monomial. What is 4a + 7?

4,840 square yards equal one of what unit of land area? 489 years after her death, which woman was canonized by Pope Benedict XV on May 16, 1920? 491 people died when the Cocoanut Grove nightclub caught fire in 1942 in which New England capital? Which quarterback threw for 35,124 yards with the San Francisco 49ers from 1979 to 1992? Which baseball team retired number 5 for Brooks Robinson and number 20 for Frank Robinson? Which truck company, known for its bulldog emblem, was started by five brothers in the early 1900s? Five-card stud is a popular version of which card game? Just five days before the statute of limitations ran out, the FBI solved which January 17, 1950 robbery in Boston?