exam Maths Puzzle Numerical Ability

solve for X : log(x-5)+ log 4 = 2

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exam Other Question

gym is 21 years newer than the auditorium. the gym is also one fourth as old as the auditorium. how old is each building? choices for auditorium age: 26, 27, 28

write and equation to PLEASE HELP:
5. Evaluate. |-19| - |-5|
A) -24
B) -14
C) 14
D) 24