Time for job = 3/4 hr/job = 45 minutes to do the whole job.
Answer:
h=4/5
Step-by-step explanation:

Collect like terms and simplify

1/2+ 1/4
= 2/4+ 1/4
= 3/4
1/12+ 1/6
= 1/12+ 2/12
= 3/12
= 1/4
Therefore, 1/4+ 1/6+ 1/12
= (1/12+ 1/6)+ (1/12+ 1/6)
= 2*(1/12+ 1/6)
= 2* (1/4)
= 2/4
= 1/2
Hope this helps~
Answer:
A function like this I had took a screenshot if I had to you brainly
Step-by-step explanation: