What is the perimeter of the parallelogram?

Q1 which of the following is a factor of a)37 b)53 c)62 d)82 q2) if the sum of 2016 different whole numbers is odd. at most how many of the numbers can be even a)0 b)1 c)2014 d)2015

How do you determine whether a relationship represented as as graph is linear or nonlinear

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'