10 = 2 x 5
Expression or equation?

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

Solve the x in the equation x^2+14x+17=-96

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have