Answer:
50 hours
Step-by-step explanation:
Josh = 50 hours
frank worked 50 hours less and twice as many hours as josh did.
Frank = 2(Josh) - 50 hours
= 2(50 hours) - 50 hours
= 100 hours - 50 hours
= 50 hours
Therefore, Frank worked for 50 hours
135/9=15.
15-6=9.
The answer is simple, ¨a¨ should equal 9.
A function's inverse will itself be a function if the original function is one-to-one. Meaning it passes the horizontal line test.