Answer: 
Step-by-step explanation:
2x^2+3
x=3
2(3)^2+3
2(9)+3
18+3
21 is the answer.
Answer:
mab-2
mbc1/2
mcd-3/4
mad-3/4
Step-by-step explanation:
Yes because it is just milk and a substance in the milk
<em>Answer:</em>
<em>n = 12</em>
<em>Step-by-step explanation:</em>
<em>85%×n = 10.2</em>
<em>85n/100 = 10.2</em>
<em>85n = 1020</em>
<em>n = 1020 : 85</em>
<em>n = 12</em>
