Which expression is equivalent to 8 − 3 (4 − 9 x) a.) 20 - 45 x b.) 23 x c.) 27 x - 4 d.) -4 - 27 x e.) none of the above

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=