Xavier spent $84 on art supplies. the canvas for each of his paintings is an additional $1. he plans to sell his paintings for $8. write an expression that could be used to find the number of paintings (p) he will need to sell to break even. solve the equation.

Answer this question, only if you know the answer. 30 points and brainliest!

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?