Answer:
3 1/2
Step-by-step explanation:
5--2=7
6-4=2
7/2= 3 1/2
b=12
a^2+b^2=c^2
(9×9) + b^2= 15×15
81+ b^2= 225
-81. -81
b^2=144
√. √
b= 12
468 x 0.001 = 0.468
46.8 x 0.1 = 4.68
4.68 x 10^3 = 4680
0.468 x 10^2 = 46.8
Hope this helps!
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