Assistance !

7. write a two column proof

8)find the link of the third angle of a triangle given that the first two angles are 35 and 70. show your work.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Find the value of x. give reasons to justify your solutions! c ∈ ae