The second choice
It has adding on both sides
.50 x .20 = .10 so 10% of the class are men with blonde hair
Answer:
the Pythagorean theorem states:
a^2 + b^2 = c^2 in your case a=24 and c=40
Step-by-step explanation:
24^2 + b^2 = 40^2
24x24 + b^2 = 40x40
(576 + b^2 = 1600)
b^2 = 1600 - 576
b^2 = 1024
b= √1024
b = 32
Final answer: 32