Someone good at math im having a mental breakdown

regular hexagon abcdef is inscribed in a circle p with a radius of 12 centimeters.

1. calculate the exact areas of circle p and regular hexagon abcdef.
2. find the exact area of the shaded region shown in the image above.
3. imagine circle p with regular inscribed octagon abcdefgh, rather than regular hexagon abcdef. in two or more complete sentences, describe the effect the number of sides of the polygon would have on the area of the shaded region.

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1

Will mark brainlist what is the slope of the line passing through the points (-2, -8) and (-3,-9)? -7/5-5/71-1