Find the area of the regular pylagon. Round your answer to the nearest tenth if nessesary

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1