in a survey of 36 seventh graders, 16 wear braces. predict how many wear braces among the school district's 720 sixth graders.

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

If sin(x) = 0 and cos(x) = 1, what is tan(x)?