HELPP!! Stochastic processes X(t)=e^(-zt)Can you answer a,b,c,d

1- Consider a stochastic process Xit=e +20 where the random variable & has an exponent distribution with A parameter. alFind the cumulative distribution of XC+1 b ) Find the mean of X1+1 clfind the voriace of X(+ ) JLEnd the of X(+)