The product of six and the sum of number x and nine equals two times x subtracted from four . write an equation to represent the sentence

Solve the system of equations. y= 2x y= x^2 - 15

Which of the following is the correct ratio for converting kilograms to grams

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.