#### Answer

$\frac{11}{25}$

#### Work Step by Step

The table shows 37 with the O+ blood type and 7 with the O- blood type, so 44 ($37+7$) have type O. The whole set of blood donors contained 100.
$\frac{44}{100}=\frac{44\div4}{100\div4}=\frac{11}{25}$

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

$\frac{11}{25}$

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