In patrulaterul convex abcd, măsura unghiului b este de 70 grade iar diagonala ac face cu latura [ab] un unghi de 30 grade, iar cu latura [ad] un unghi de 40 grade. masura unghiului acd este 50 grade, iar drepturile ad și bc se intersectează in e. aratati ca ac congruent ce. urgnt

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

`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. ''.