Can somebody me with this? i don't get this problem

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

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

What is always true about a positive integer raised to a negative odd power?