3 tons and 700 pounds = how many pounds​

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]

Are the corresponding angles congruent? explain why or why not.