Answer:
30
Step-by-step explanation:
Use part/whole proportions. 10/25 (15 + 10) = 12/x. Multiply 12 times 25 (300) = 10x (10 times x). 300 = 10x, isolate x by dividing both sides by 10 and you get 30 = x.
6, 10, 5
b = 2.3
450.8 / 196 = 2.3
The answer is 768 mark as brainliest
0.034, 0.340, 0.403
hope this helped. :)