In 2016 a company sold 9600 cars, correct to the nearest hundred.

(a(i)) Write the lower bound for the number sold. [1]

(a(ii)) Average profit per car was \$2430, correct to the nearest \$10. Calculate the exact lower bound for total profit. [2]

(a(iii)) Write this profit to 4 significant figures. [1]

(a(iv)) Write the answer to (iii) in standard form. [1]

(b) April sales of 546 cars were 5% higher than March sales. Find March sales. [3]

(c) A new car cost \$3000 in 2013. Its price grows exponentially by 3% per year. Find the price 4 years later. [2]