Find the circumference. Use 3.14 for pi. ​

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?

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.