There are 20 students on the School Leadership Council. They need to form a committee of 4 in order to plan the upcoming school dance. How many different groups of 4 can be created from the council? A)4845
B)116,280
C)24
D)20!

Write two subtraction equations that are equivalent to 5 + 12 = 17.

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?