He spends $750, and makes $3000
3000/650=0.22
The answer is 22%
There is a percent formula for all of these types of percent problems.
It is : is/of = %/100
224 is what % of 640
is = 224
of = 640
% = x
now just sub
224/640 = x/100
cross multiply because this is a proportion
(640)(x) = (224)(100)
640x = 22400
x = 22400/640
x = 35......so 224 is 35% of 640
Option D: 
is the right answer
Step-by-step explanation:
Given polynomials are:
We have to find the sum of polynomials
So,
Combining like terms
Hence,
Option D: is the right answer
Keywords: Polynomials, sum
Learn more about polynomials at:
#LearnwithBrainly
Answer:
21,25,29,33
Step-by-step explanation:
