The bill at a restaurant is $160. You leave a 20% tip. What is your total restaurant bill, including the tip?

Walking at a constant rate of 8 kilometers per hour, juan can cross a bridge in 6 minutes. what is the length of the bridge in meters?

Quadrilateral abcd is a parallelogram with diagonals that intersect at point e. which of the following statements is true?

Ben frank is an electrician who installs lighting fixtures. he charges (in dollars) his clients 15h+40f15h+40f where hh is the number of hours worked and ff is the number of fixtures installed. how much does ben frank charge when he works 77 hours and installs 99 fixtures?