Answer:

Step-by-step explanation:
Let's bring the line in the classical
form

At this point we have the two values
for the slope and
for the intercept
Divide the numerator with the denominator for each, and that's all really... Good luck!!
M < 3 + m<4 = 180 degrees (adjacent angles)
m<4 = 180 - 77 = 103 degrees Answer
Since 1 batch needs 1 1/2 cups. You simply have to multiply 1 1/2 x 3.
4 1/2 cups are needed to bake 3 batches.