What is an equation in point-slope form of the line that passes through the point (4, −1) and has slope 6?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c