Because you have to go in the order of PEMDAS, parenthesis, exponents, multiplication, division, addition, and subtraction. From what you are saying, 'why you must simplify 3 to the second power first' it seems that you have no parenthesis, so you move onto what is next, which is exponents, in this case, 3 to the power of two.
Remember, ab+ac=a(b+c)
undistribute the 14
14(l)+14(3a)=14(l+3a)
D is answer
Answer: exponential decay and 18%
Step-by-step explanation: Since what is in the parentheses is less than 1, it is exponential decay
Answer:
3.3
Step-by-step explanation:
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