The property of exponents says that when you divide two exponents with the same base, you can keep the base and subtract the exponents. So you can do 18-3, which is 15, so it would be 15 to the 15th power
Answer:

Step-by-step explanation:
Given



Required
Determine the percentage of protein
First, we need to calculate the total:



Percentage of protein is calculated as thus:




Answer:
60%
Step-by-step explanation:
Part a:-
The base of each triangle is 4 inches long.
Their height is 3/2 * 4 = 6 inches.
b
The combined area of the triangular faces = 4 * 1/2 * 4 * 6 = 48 sq ins
c
Surface area of the pyramid = 48 + area of base = 48 + 16 = 64 sq ins.