Options are
2k-13
8k-13
2k+13
2k-7

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question)                                8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is