Write another ratio that is equivalent to 4 :6.

2. How do you know they are equivalent?

Match each expression with its simplified form.

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left