Automobile sales in a country were 35.9 million this year, a 2.4 % increase over last year. Find the number of auto sales in the country last year.

35,058,593.75

Step-by-step explanation:

let the number of sales for last year be x

2.4% increase is given as (2.4/100 * x)

x + 2.4x/100 = 35900000

finding the lcm of the right side

(100x + 2.4x) / 100 = 35900000

102.4x/100=35900000

multiplying both sides by 100 and dividing by 102.4 gives

x = (35900000 * 100) / 102.4

x = 35,058,593.75