Could some help me with this and explain it. I really need help

Lois and clark own a company that sells wagons. the amount they pay each of their sales employees (in dollars) is given by the expression 12h+30w12h+30w where hh is the number of hours worked and ww is the number of wagons sold.

Evaluate the expression. (9 + 5)(3 + 2)0

Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?