Norman knows that his first four test grades were 83, 92, 95, and 93. Use the formula x‾=x1+x2+…+xnn to find Norman's grade on the fifth test if his test average is 90.6.

What statement is true? 2x^2-9x+2=-1

Pls what is the decimal equivalent of 5 over 9? select one: a. 0 point 5 bar over top of 5 b. 0 point 6 bar over top of 6 c. 0 point 8 bar over top of 8 d. 0 point 9 bar over top of 9

Suppose you have 10 skittles. 5 green and 5 red. you choose 4 without looking. what is the probability that all 4 skittles will be green?