Jon had 45 dollars in his account. He made 7 dollars per hour at his job. At the end of the week he had 150
dollars in his account. How many hours did he work?

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.

If the measure of xyz is 81 what is the measure of yz

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.