Roberto has already run 16 of 26.2 miles of a marathon. Rounded to the nearest whole number, what percent of the marathon has he completed?

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?