The temperature in city increased from -12 f at the dawn to 7 f in the afternoon. what was the change in temperature in degrees fahrenheit?

How much orange juice do you need to make 2 servings of lemony orange slush?

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2