Answer:
a. 48:16
b. 3:1
Explanation:
Part a asks for a ratio of the two speeches. You simply separate the two numbers with a colon to show that it's a ratio.
Part b asks that the second quantity (which is the speeches made by B) be 1. To do this, divide 16 on both sides. 48 divided by 16 is 3, and 16 divided by 16 is 1. Thus, 3:1