Well... if 450 is 90% of the crates then 500 is 100%. 450 crates is 0.90% of 500 crates.
Answer:
.9 or 90%
.1 or 10%
Step-by-step explanation:
E= Exam
P=Paper
E= .71
P= .45
E∩P=.26
A.) E∪P=?
E∪P= E+P-E∩P
.71+.45-.26= .9
B.) E'∩P' = (E∪P)'
(E∪P)' = 1-.9 = .1
Write the equations:

Substitute for h:

Solve for s:

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