A15 gram sample of a substances thats a by product of fireworks has a k value of 0.1405

Which of the following expressions is equal to 2x^2+8

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1