While almost anyone can perform rudimentary calculations in Google Sheets without resorting to formulas, if you want to do more than simple arithmetic, it's incredibly useful to be able to create ...
How long did a job that cost £130 take? The formula for this plumber's charge is: \(T = £60 + £20 \times h\) where \(T\) is the total cost and \(h\) is the time in hours. For this question ...