What’s the absolute value of 2/3 (i need 2 answers lol) lol

When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?

On a piece of paper graph f(x)=5•(0.4)^x

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2