Answer:
-3x+30
Step-by-step explanation:

Expand 

Simplify 

Answer:
C) p + 3 < 20
Step-by-step explanation:
Since the max is 20, it has to be < 20
p + 3 < 20
Answer:
$18.30
Step-by-step explanation:
100 - 26.80 = 73.20
73.20 / 4 = 18.30
Answer:
a= (π/4) + (kπ/2)
Step-by-step explanation:
I have attached the explanation above. hopefully this will help