Well the equation for slope is

number 5

which means the slope is
Answer:The third angle would be 60⁰
Step-by-step explanation: Since a triangle adds up to 180⁰, 40 + 80 = 120⁰. And 180 - 120 = 60⁰.
Answer:
Remember: minus a minus is a plus:
=11
Step-by-step explanation: