An event has a theoretical probability of 20%. Which of the following must be true? o Its experimental probability will always be 20%.
O The experimental probability of its complement will always be 80%.
The theoretical probability of its complement will always be 80%.
The theoretical probability of its complement will always be -20%.

The graph of the the function f(x) is given below. find [tex]\lim_{x \to 0\zero} f(x)[/tex] [tex]\lim_{x \to 1+\oneplus} f(x)[/tex] [tex]\lim_{x \to 0-\zeroneg} f(x)[/tex]

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?

Plz : denver is about 5,200 feet above sea level. which number line best represents this integer?