If f(x)= 7x^18 + 7x^25 +2x^28 + 6x^43 find f(i)

Tiara buys the pizza shown below: a circular pizza is shown. the edge of one slice is marked ab. what does the curve ab represent?

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?