Question

he pay a fixed charge of $30 plus $10 per hour to rent the digger work out how much he pays to rent the digger for?

Answer 1

How many hours does he rent it?

Either way, the equation would be 30 + 10x

x is the number of hours he rents the digger.

So for example, if he rented it for say 8 hours

30 + 10(8)
30 + 80
$110