Pls help lol Which ordered pair is a solution to the system of equations f(x) = x and g(x) = x2 – 2?
(1) (-2,-2)
(2) (-1, 1)
(3) (0,0)
(4) (2, 2)

Pelle's sister is three years older than pelle the father is 5 times as old as pelle the mother was 28 when the sister was born altogether they are 98 years old how old is pelle?

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

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.