(A) because a right angle is 90 degrees and has a equal eqivalent to get to 100
$160 I think. Hope I’m right if not sorry.
2-7=-9 so not that one... 14-7=7 so also no... 16-7=9 would be the answer but to make sure you want to do the other ones too not just skip then... 63-7=56 so nope that wouldn't be the correct answer. 16 would be the answer to your question.
The easiest way to do this is to start with the power of 5 that is just under 219.
125 would be the closest power of 5
Now subtract 125 from 219 = 94
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The highest power of 5 closest to 94 is 25. You have to multiply 25 * 3 to get a number close enough to 94 that leaves a remainder under 25
94 - 75 = 19
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19 - 3 * 5 = 4 Same argument as above.
219_10 = 1334_5
Each of the 5 questions can be answered 4 ways. That is, there are 4×4×4×4×4 possible answer patterns.
There are 4^5 = 1024 possible ways to answer.
