Answer:
11
Step-by-step explanation:
Let a= times he hit 4 par
Let b = times he hit 5 par
a+b=18 => 4a+4b = 72
4a+5b=79
b=79-72=7
So a = 11
2/27 total play both.
2/27 = .074 move the decimal over 2 places = 7% chance
Flip the second fraction, and then multiply them. when you do that, simplify the total, and you got your answer