Determine the number of real solutions for each system of equations.
I need help ASAP

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

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

Use the distributive property -7(-2x+u-2)