Need with a math problem
" at bobs detective agency, the cost of following someone is $249.00 but today is a special day, and he is offering a 40% discount to his best customers. what is the new cost of his service once the discount has been taken off? how much would the actual price be if there was 7% tax on top of the sale price? "
show work , i wont get good marks if it isn't shown ; ; last time posting, i want a real answer ..

The description below represents function a and the table represents function b: function a the function is 5 more than 3 times x. function b x y −1 2 0 5 1 8 which statement is correct about the slope and y-intercept of the two functions? (1 point) their slopes are equal but y-intercepts are not equal. their slopes are not equal but y-intercepts are equal. both slopes and y intercepts are equal. neither slopes nor y-intercepts are equal.

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

Math question.. plz me .. best answer all