Answer:
A: They help introduce the speaker to the audience.
Explanation:
<span>Substitute for "a" and solve for "b":
7b = 10(b-24)
7b = 10b-240
3b = 240
b = 80 (# of calories in a banana)</span>
uh that's a hard one, but i say B because of the in)most yknow?
if you have another attempt, pick D or A i don't know that's so hard bro