What is the correct expression of 10

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36