Answer:
2 
Step-by-step explanation:
Change the mixed numbers to improper fractions
(
-
) +
← the LCM of 2 and 3 is 6
=
-
+ 
=
-
+ 
=
+ 
= 
= 
= 2 
It takes the robot 1.4 hours (or 1 hour and 24 minutes) to complete one task
the robot can complete 0.714 tasks per hour
Your quotient is undefined if under the root you have a value <0
this means the value has to be >=0
so 15(x-1)>=0
(x-1)>=0
x>=1 which is option B
Answer:183
Step-by-step explanation:18but with 3 183