A gymnast wants her average score after 3 events to be between 9.0 and 10. If she scores an 8.7 and 9.1, what possible values for the third event will make her average between 9.0 and 10?

Can someone me with these two circle theorem questions asap?

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)

How do you write something in scientific notation?