4.2 hours, do 315 miles / 75 miles per hour
Answer:
136
Explanation:
The Mass Number is the combination of the amount of Protons and Neutrons in an element, so if the total mass is 222, and the amount of protons is 86, then you can do 86 + x = 222 to find that x is equal to 136
Answer:
it is less dense than water
Explanation:
odyssey ware
Definition of indirect evidence. : evidence that establishes immediately collateral facts from which the main fact may be inferred : circumstantial evidence.
Answer:
isotope 2
Explanation:
it has the highest percentage abundance