I think it is C, that is my best guess, but hope I helped :)
Step-by-step explanation:
This sounds like you need to use Pythagorean therum which is A^2+B^2=C^2
a(squared)+ B(squared)=C(squared) and at the end try to use √ to get your answer.
0.4% of 100 is .4 whoops i thought it was 0.4 as a decimal :P
The person above had the right answer, I checked
Answer:
2n +14 = 30 I can use inverse operations and solve for n.
Step-by-step explanation:
twice means 2 so twice a number,n, means 2 times n thus 2n.
sum means add so, 2n + 14
is means equal so 2n + 14 = 30
If you solve it you will find n = 8