What is the place value of the 9 in 194.6

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.

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

If the discriminant if a quadratic equation is 4 which statement describes the roots?