One hundred students were surveyed about whether they prefer snapchat or instagram. out of the 50 boys surveyed there were 40 boys who prefered instagram. out of the 50 there were 30 girls who prefered snapchat.
assuming that all students have a preference how many girls prefered instagram?

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Sum of the interior angles of a pentagon