Please help! Write down the quadratic equation whose roots are x = -7 and x = 1, and the coefficient of x^2 is 1. Enter your answer in the form "x^2 + bx + c = 0".

Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. the punch has 2 liters of ginger ale. part a: write an equation using one variable that can be used to find the total number of liters of cranberry juice and ginger ale in the punch. define the variable used in the equation and solve the equation. hint: 0.8x represents the number of liters of cranberry juice in the punch. (5 points) part b: how many liters of cranberry juice are present in the punch? show your work.

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).