PLZZ HURRY!! The histogram shows the scores of students on their most recent history test. How many students scored 80% or better on the test?

A. 8 students
B. 10 students
C. 18 students
D. 22 students

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

How can constraints be used to model a real-world situation?

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.