Simplify .
question:
a+2a+3a+4a
a)9a
b)10a³(the small three is a four)
c)9a³(also a small four)
d)10a

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

Question 13 (1 point) jerome is starting a new job. his contract states he will earn $42,000 the first year, and will get a 4% raise per year. which function s(x) represents jerome's salary after a certain number of years, x?

597008.439431 to the nearest thousand