I'll give out brainliest and 10 points.

how will adding the value 8 affect the mean and median of the data set 4, 6, 8, 10, 12?

a.
the mean and median will increase by the same amount.

b.
the median will increase more than the mean.

c.
the median will stay the same, but the mean will increase.

d.
the mean and median will both stay the same.

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations