Permutation and Combination (Combination)
How many different 20-question examinations can be formed from a test-bank of 30 questions?

30 c 20

Chose the graph below that represents the following system of inequality’s

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

Does anyone know how to do geometryme with this problem