For this type of question, you just need to multiply the percentage with the number
so, the calculation would be
47.2% x 300
47.2/100 x 300
47.2 x 3
= 141.6
Mr Stephens will need to haul in 58.4 tons o move all of the rocks
Step-by-step explanation:
note : H for head, T for tail
The formula for area of a trapezoid is:

Sides a is the top line and side b is the base, or bottom line. Add the sides together and divide by 2. After you do that, multiply the answer by the height.
Height is the length between the two sides, a and b.
The answer is Either 2 18 or 21