68 ounces equals in pounds in fraction form?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000