James counts the hair colors of 22 people in his class, including himself. he finds that there are 4 people with blonde hair, 8 people with brown hair, and 10 people with black hair. what is the probability that a randomly chosen student in the class does not have red hair? explain.

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie