Answer:
2.5
Step-by-step explanation:
Answer: value of c = 5
Step-by-step explanation:
Answer:
Function notation
Step-by-step explanation:
y=f(x) is in function notation
Answer:
x = 20
Step-by-step explanation:
added together, the angles make 180
3x + 80 + 2x = 180
subtract 80 from both sides of the equation
3x + 80 - 80 + 2x = 180 - 80
combine like terms
5x = 100
divide both sides by 5
5x/5 = 100/5
x = 20