Question

An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula:
N = 3,500 + 300 ln a (a ≥ 1)
How many units are sold after spending $1,000? (Round your answer to the nearest whole number.)

Answer 1

does that say ln a

Answer 2

it looks like all you have to do is plug in 1000 for a

Answer 3

thats where i get lost

Answer 4

to answer your question yes

Answer 5

please help