Answer:
b.
Step-by-step explanation:
6 times a number plus 2: 6x+2
7 added to 4 times the number: 7+4x
6x+2 = 7+4x
2x = 5
x = 2.5
750 feet below sea level
that's a hundred and three because n which is the variable * 100 + 3 equals 103
19n+9u=7500 and 4u-n
