What is 5/6-8/9 how do you divide this

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

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is

Which statement about 6x2 + 7x – 10 is true?