In a sample of 12 bank tellers at a local branch office, the 7 tellers who have completed the advancement training program offered by the bank have a lower average error rate in the processing of transactions than the remaining 5 tellers.

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step-by-step explanation:

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

8.3 and the 3 is repeating

hope this .