CAN SOMEONE HELP ME NOW PLEASE ?

What are the sotions to the quadratic equation 9x^2=4

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers