If R is the midpoint of segment QS, find segment QS. The line shows Segment QR= 5x-3 also RS= 21-x, I need help finding QS

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x