I am assuming theres an addition sign between the 3 and 4.
So basically you want to multiply the 5x by both terms so it will end up being
(5x•3) + (5x•4)
Now simplify:
15x+20x
Hope this helped ^_^
Answer:

Step-by-step explanation:
Answer:
third one passes through the slope .
Answer:60
Step-by-step explanation:The measure of 1 is 60 because it's only half the size of 120