<h2>♨ANSWER♥</h2>
F = ma
<u>☆</u><u>.</u><u>.</u><u>.</u><u>hope this helps</u><u>.</u><u>.</u><u>.</u><u>☆</u>
_♡_mashi_♡_
The mass number (the amount of protons and neutrons that element has altogether)
Answer:
8 mph, 12 mph
Explanation:
t = Time taken = 7 hours
x = Speed of Randall
x+4 = Speed of Gregory
The distance they both will travel together is 140 miles if they start at the same time.


The speed of Randall is 8 mph
The speed of Gregory is 8+4 = 12 mph
7 miles long i think bc i dont know bc i am bad at math and math is good