For 
reading the fraction like f(x)/h only (f(x+h) start fraction f(x) / h end fraction), the answer is 
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3:1 =300%
2:3:5 =50%
1:4 =25%
1:2:5 =62.5%
1.c 2. b 3. b 4.a 5.b 6.c these are the correct answers
Answer:
18x^2+6
Step-by-step explanation:
2(9x^2+3)
multiply each term in parentheses by 2
2 x 9x^2+2 x 3
calculate product
18x^2+2 x 3
multiply numbers
18x^2+6
