What is the basic unit of weight in the metric system

We ... Weight is not actually a 'basic' unit at all. 

'Mass' is, and its unit is the kilogram.

'Weight' is a 'force' ... a derived unit ... made up
of mass and acceleration.  The unit of force is
the (kg-meter/sec²), called the "Newton"

(1 newton) is the force that accelerates (1 kilogram of mass)
at the rate of (1 meter per second) every second.

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.