make improper fractions first. Then look for a common denominator (7*9) you will get something like this:
((73*9 + 9*19*7)/(63))
You would first make the fractions improper (making the numerator bigger then the denominator) in order to do that times the denominator with the whole number and add the numerator.
Ex) 3*8 = 24 + 5 = 29/8
Then you would add both of the improper fractions
bearing in mind that parallel lines have the same exact slope, then any parallel line to the one above will have the same slope as that one.

It grew 3/10, which equals 0.3 centimeters every day, and as a fraction, 3/10 would be the answer.
3/10 is the answer.
Hope this helps, and have a nice day!
2 solutions, the root to the equation is the same as the root to the solution also known as “double roots”