The equation of a line is y=4x+7 write down the gradient of the line and write down the y-intercept of the line.

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?