Answer:
i only have the answer for a. the workers need to sell 15 more pizzas to get the bonus which would total to 90 pizzas sold to get that bonus.
Step-by-step explanation:
take 75 and put it over 100 like this 75/100 then take 20% and put x over it
like this x/20 then you cross multiply 75x 20 is 1500 divide that by 100 and you get 15 the answer.
hope this helped