Given g(x)=-x-2 find g(3)

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18

Awater truck is filling a swimming pool the equation that represents this relationship is why equals 19.75 x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool

The equation of line e is y  =  -4/9x  +  5/6.  line f is parallelto line e.  what is the slope of line f