A slot machine takes only 10 cent and 50 cent coins and contains a total of twenty-one coins altogether.
If the value of the coins is $4.90, find the number of coins of each value

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

What is the value of f(x) = 2.2 for f(-2)?