In the accompanying diagram of parallelogram ABCD, diagonals AC and DB intersect at E,
AE= 3x - 4, and EC = x + 12.
D
E
B
What is the value of x?
1) 8
2) 16
3) 20
4) 40

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)