The ratio of j to 40 is 1 to 2. What is the value of j?
A) 1
B) 10
C) 20
D) 80

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.

What is the solution for 6 - 7/8? explain the steps.