Use all four operations without parentheses to write an expression that has a value of 100

You are studying different function tools and begin working with this function y=-160-9(x) use the equation to answer the question y=-160-9(x) what is the y value when x equals -13? y=-160-9(x)

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Which expression gives you the distance between the points (5,1)and(9,-6)