Exactly half of these integers are odd (1, 3, 5, ..., 29) so the probability of selecting an odd number is

.
Answer:
m= -10.5
Step-by-step explanation:
4m-6(2m-3)=90
distribute 6
4m-12m+6=90
combine like terms
-8m+6=90
subtract 6
-8m=84
divide both sides by -8
answer
m= -10.5
42 divided by 5 is actually 8.4 however u cant have .4 of a rock so the answer is that each friend gets 8 rocks( including him)