Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify. The sum of 7 and the cube of a number.
The sum of 7 and the cube of a number.

Find the equation of the line that goes through the points (4, –1) and (2, –5). use slope formula,equation,to find the slope of a line that passes through the points. m = use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line. b = write the equation in slope-intercept form, y = mx + b.

Can someone me and do the problem plz so i can understand it more better

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.