R - 18 = 50
r = 50 + 18 = 68
Hence Rick is 68 yrs old
Start writing 78% as a fraction or decimal

Multiply by the number 80

The 78% of 80 is equal to 62.4
There are 26 possible lowercase letters, 26 possible uppercase letters, and 10 possible numbers (0-9).
26+26+10=62
That means there's a 1/62 chance that they get one letter right.
But there's 15 letters.
They're chance would decrease each time to get it exact.
1/62 divided by 15/1 =
1/832
So there is a 1 in 832 chance that the hacker guesses it correct first try with that information.
Answer:
? = 3
Step-by-step explanation:
given a line parallel to a side of the triangle and intersecting the other 2 sides, then it divides those sides proportionally , that is
=
( cross- multiply )
4? = 12 ( divide both sides by 4 )
? = 3