Afather is 1 year younger than 3 times the age of his son . the son is 20 years old . let f = the age of the father , what formula would calculate the fathers age ?

Miguel bought a movie ticket that cost $5. he also bought popcorn and a bottle of water. how much did miguel spend altogether?

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

How to simply and write the answer n a whole number