Help! I don’t understand this A game has two four-sides dice having the number 1, 6, 7, and 4 on their faces. Outcomes in the sample space are pairs such as (1,6) and (4,4).

d. what is the probability that the total showing is greater than 9?

I have the other ones solved but really need help on the last one.

In a certain pentagon, the interior angles are a, b,c, d,e where a, b,c, d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

Marlow is comparing the prices of two trucks rental compaines company a charges $3 per hour and an addtional $75 as serivce charges company b charges $2 per hour and an additional $85 as serivce charges