The length and width of a rectangle are 7 cm and (x-8) cm respectively. find the value of x if the area of the rectangle is 42 cm2

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.