Andrew buys a laptop for $450. The store increases its purchase price by 40%? What is the new price of the laptop?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?