Anybody anybody i really need this right

Step-by-step explanation:

a. If sales tax was 50%, we would divide the sales tax dollar cost ($7.14) by a half to get the original cost.

Instead, lets divide $7.14 by 0.051 (the sales tax percentage in decimal form) to get the original.

7.14/0.051 = $140

Great, so we know that the original cost is $140.

b. Now you probably live in epic country (god bless) where you don't add sales tax to things in the advertised price.

140 + 7.14 = $147.14 is the price you have to pay.

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step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.