I would say to do 637000-437000, which is 200000, and then do 200000/637000. You get 0.314, and the percentage of that in hundreds is 31%.
It can be inferred that the siblings of the autistic children in the study do not have autism.
114°+x°=180
Subtract 114° for both side
x=66°. Hope it help!
12 x 24= 288 288 x 10 = 2,880 2,880 cubic centimeters
