If a group of distinct objects can be arranged in 120 different
ways, how many objects are there?
A.3
B.4
C.5
D.6

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

What’s the answer? and how do i solve it ?

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old