Find an equation in standard form for the hyperbola with vertices at (0, ±9) and foci at (0, ±10)

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?