160 ounces equals how many pounds and how many ounces equals 14 pounds

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.