Question

3 Petrol costs $c per litre and a bottle of engine oil costs $e.
Nina buys 30 litres of petrol and 2 bottles of engine oil.
Write an expression for the total cost.​

Answer 1

Answer:

petrol costs c for 1 litre

30 litre will cost 30c

Similarly 2 bottles of engine oil will cost 2e

So the expression is

30c + 2e