PLZ help 30 points PLZ help ASAP
1)
9 is 9% of what number?
A) 81
B) 90
C) 100
D) 109

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14