I don't know where to start :D

I started at 1.5, and i think i was doing the calculations wrong..

You can use a calculator for this:

Q1: The equation x^3 + 10x = 21

has a solution between 1 and 2

Use a trial and improvement method to find this solution.

Give your answer correct to one decimal place

You must show ALL your working.

Can someone do this for me please, and make it clear what you type into your calculator paper?

Also i don't get why this is worth 4 marks:

Q2: Ann Drives 210 km in 2 hours 40 minutes.

Work out Ann's average speed.

Isn't it just 210.2.4 ?

Because the ratio of km to hours is the same as metres to seconds

ps. I got my GCSE maths calc paper tomorrow, the non calc went very well - thanks for your help on that! :)