Simplified expression of 7z + 8 + 5z – 5z – 9?

Aboard game uses a fair six-sided die and a spinner with five equal-sized sections colored dark blue, green, light blue, red, and yellow. players roll the die and then spin the spinner. match each probability statement to its correct value.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

What is x3+3x2−16x−48 divided by x−1?