Plz show me step by step how to solve these equations asap. tysm!

13. x^6-64x^4+x^2-7x-51; x=8

14. -x^3+3x^2+5x+1; x=-12

15. 2x^3+4x^2+6x+7; x=1/2

(btw, 13, 14, and 15 are not a part of the equation)

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1

Find the missing dimension extra points