The width of a rectangle is 9 units less than it length l. Write an expression that shows how wide the rectangle is in terms of L

Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

What is the period of the sinusoidal function ?