Answer:

Step-by-step explanation:
We will be using 2 properties of radicals in this simplification (outlined below).
<em>Let's simplify this:</em>

First answer choice is right.
Answer:
48 rocks
Step-by-step explanation:
there are 4 rocks in one pound since each rock weighs 4 ounces so 4 times 12 equals 48
Answer:
15 km/h
Step-by-step explanation:
To find the speed, divide the total number of kilometers by the total number of hours:
Find the total number of hours:
32 + 13
= 45
Divide this by 3:
45/3
= 15
So, the average speed was 15 km/h
The time would be 1:24 pm