3. a. draw a scaled copy of the circle using a scale factor of 2. b. how does the circumference of the scaled copy compare to the circumference of the original circle? c. how does the area of the scaled copy compare to the area of the original circle?

1. are the triangles similar and if so why? what is the value of x? show your work.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Question 3 (essay worth 10 points) (03.06 mc) part a: max rented a motorbike at $465 for 5 days. if he rents the same motorbike for a week, he has to pay a total rent of $625. write an equation in the standard form to represent the total rent (y) that max has to pay for renting the motorbike for x days. (4 points) part b: write the equation obtained in part a using function notation. (2 points) part c: describe the steps to graph the equation obtained above on the coordinate axes. mention the labels on the axes and the intervals. (4 points)