we saw in example $13\mathrm{.}9$ that $91\%$ of gen X$-$ers are online and that $89\%$ of online gen X$-$ers say their use of the Internet is a good thing for them personally. gen xers make up $20\mathrm{.}3\%$ of the u$.$s$.$ adult population. What percentage of gen X$-$ers are online and say the Internet is a good thing for them personally?