(4x^2-2x-3)+(-3x^2+x+7) i know the answer i just need to show the work

Bradley completed latex: \frac{3}{5} 3 5 of his homework. what percent of his homework does he still need to complete?

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second