Answer:
you multiply 0.45kg by 87kg you will get 39lb
I will be glad to help you in the comments. I do need to know though, what is the class this is presented in? Is this algebra, or calculus? Depending on the class, we have different approaches.
Answer:
yd^2
Step-by-step explanation:
Formula: 
p = 7.5 + 7.5 = 15
q = 13 + 13 = 26

A = 195