A speedometer has a percent error of 10%. The actual speed of the car is 40 mph. Select from the drop-down menus to correctly complete the statement.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Suppose that g(x)=f(x+9) which statement best compares the graph of g(x) with the graph of f(x)