Answer:
A. 107
Step-by-step explanation:
Angles 107 and b are corresponding angles,
Corresponding angles are equal.
So,
b = 107
Answer:

Step-by-step explanation:
Heart rate will be represented by
, minutes will be represented by
.
Here's the equation I came up with:

We can also rearrange it to look like a point-slope equation. Either way works, it's the same equation.

This works because her heart rate is decreasing by a constant value. The initial heart rate is like the y-intercept, while the amount that it decreases by is the slope.
I hope this helps!
Answer:
answer is A. cosine
Step-by-step explanation:
20-3x=8
Subtract 20 from both side to get 12
Then 3x=12
Then divide 3 by both sides
Your answer is 4