Well for 11, it is an inequality, a > sign or < sign with a little underscore mean either "greater than or equal to" or "less then or equal to" so 30> 12+m (>with an underscore) means 30 is greater than or equal to 12+m
$9 + $7 + $5 = $21 so $18 - $21 = account balance = -$3
The answer is 400 because u multiply 8 x 10= 80 x 5=400
