Which number sentence shows the associative property of addition? choose all that apply. 3z + 9p = 9p + 3z 3x(5 + 2) = 3x(5) + 3x(2) 3 + (2 + 8) = (3 + 2) + 8 (6 + 1) + 9 = 6 + (1 + 9)

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

Can any one me with the answers to these questions asap?

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.