I NEED 4 5 and 7 please

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

4) 5x+16 because it's a parallelogram and both sides are equal and parallel

5) (4x+3) degrees because, again, it's a parallelogram so alternate angles are congruent

7) 180-10x-8=180

-10x=8

x=-0.8

I'm not 100% sure on the last one, so maybe try that one again just in case.

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!

42

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this