C because it's x means weeks so $5 a week is 5x and she already has 127 so 5x+127.
9 less means subtract
the product of 5 and the number n mea multiply 5 and n
D. 5n-9
a coin always has a 50% chance of landing on either heads or tails.
-4-(2m+3)=-m-(5+3)
-4-2m-3=-m-5-3m
-2m-7=-4m-5
-2m+4m=-5+7
2m=2
m=2/2
m=1