Answer:
B
Step-by-step explanation:
Recall that 
So now

Answer: 4. -12
4. 9
6.17
Step-by-step explanation:
Answer:
It took 20 minutes to make 1 batch
Step-by-step explanation:
If 1/4 batch of brownies takes 5 minutes then you just multiply 5 times 4 and that equals 20.
4f=2500 because 4 trips from 2500 means

.
(3x + 13) + (8x + 14) + 109 = 180°
(3x + 13) + (8x + 14) = 71°
11x + 27 = 71°
11x = 44°
x = 4