Step-by-step explanation:
12 inches = 30cm.
12 inches = 30cm.
8 inches = 20.3 cm
32 inches = 80.3 cm.
30°
A strait line is 180°
75°+75°=150°
180°-150°=30°
Answer:

Step-by-step explanation:
We want to evaluate:

for x=-2 and y=-4.
We substitute to get:

We now simplify to get:



Answer:
0.75
Step-by-step explanation:
i do not completely understand what you are asking.