What is 50 - 30%= i forget how to do it :C

Use the numbers in the multiplication equation 45 x 1/9 =5 to write a division equation involving division by a fraction.

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

For the given quadratic equation convert into vertex form, find the vertex and find the value for x=6 y=-2x^2+2x+2