The phrase “twice the difference of a number 5” can be written as which variable? 1. 2(x-5) 2. 2(x+5) 3. -5+2x 4. 2+2(x-5)

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2