Answer is : 3x+4 the second one
Answer:

Step-by-step explanation:
Let the
be the first number,
be the second number and
be the product of the first and second number.
i.e




Now,

Hence, 
Answer:
1. b and g 2.a end e 3. d and f 4. g and h
Step-by-step explanation:
The answer is 37. Hope this helps!