Answer: He spends 29.17 hours per week
Explanation:
1 class = 50mins
7 classes = 7 x 50mins = 350mins
For 5 days in a week, we have
5 x 350mins = 1750mins
Converting to hours, we have
1750 /60 = 29.17 hours
Rust is an iron oxide and formed by the reaction of iron and oxygen in the presence of moisture. So the answer would be C
Oil and water can separate by utilizing a separating funnel, oil and water are totally insoluble in one another. The water structures lower while the oil forms the upper layer.
Change the places of 'acts against the motion of an object' and 'causes an object to change speed or direction'