halla la medida en centímetros del cateto desconocido de un triángulo rectángulo cuya hipotenusa mide 10 cm y el cateto conocido mide 8 cm​

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

: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?

Alice is paying her bill at a restaurant. but tax on the cost of a male is 5%. she decides to leave a tip 20% of the cost of the meal plus the tax