Answer:785.4
Step-by-step explanation:
The mean is all of them added together divided by the number, so multiple the mean by the number of sides, 3, and that's the perimeter. 18 x 3 = 54
The expression for Wendy's weight would be p-8.
Since Wendy is 8 pounds less than Jean, we take Jean's weight and subtract 8. If Jean's weight is p, then Wendy's would be p-8.
To do this multiply 1840 by 182. This gives you 334,880.