Answer:


Step-by-step explanation:
Given
--- not more than
spending
Solving (a): Represent as an inequality
Not more than means <
So, the inequality is:


Solving (b): The first two possible solutions
These are the numbers closest to 150 i.e. 149 and 148
Hence, 
The Answer to the question is B
It will have 15 protons because the atomic number will always equal the number of protons and vice versa
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