If three-fifths of a class of thirty-five pupils are girls, how many are boys?

Which of the following vectors are orthogonal to (2,1)? check all that apply

Megan is making bracelets to sell to earn money for the local animal shelter. it takes her 1/4 hour to pick out all the beads and 1/10 hour to string them.this week, she only has 5 1/4 hours to make bracelets. how many bracelets will megan be able to make?

Which best describe the graph of the function f(x) = 4(1.5)x