What is the value of the expression d – 15 when d = –23

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.