Lerato sells her Chip Twisters at a local flea-market. Her rent and transport costs per week amount to R450,00.
a. Write down the formula that Lerato can use to calculate her weekly costs to produce and sell Chip Twisters if the total cost to produce one Chip Twister is R2,50.
Write the formula in the form:
Weekly costs (in rand) = 450 + ...
b. Hence, or otherwise, calculate how many Chip Twisters she will make if her weekly costs are R1 700.