Help please just this question for a test

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

What is 0.000008 meters in scientific notation