It is known that these grass seeds have a 95% probability of germinating. If I plant six seeds what is the probability that four seeds will germinate?

This is a binomial distribution problem. Do you know how to do those?

First, assign your variable:

X ~ B (n, p)

n = 6 and p = 0.95

Find P(X = 4) which is equal to nCr(p)^r(1-p)^{n-r}

Where r = 4