Hello :
<span>(x 4 +5x² - 36)(2x ²+ 9x - 5) = 0</span>
I think the answer is $5.66
The probabillity can be found by using binomial probability formular considering that the event is discrete in nature and there are two possiple outcomes.
The base's length is 8 and it's width is 7, so it's perimeter will be

. To find the lateral area you shoul multiply this with it's height. So,

(h is height).