Please Please help! I need this really quickly. I will give brainliest to whoever can answer quickly please!!

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

: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?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.