What is the sum of 4.5 + 3.2 + (-7.5)

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

1. are the triangles similar and if so why? what is the value of x? show your work.

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000