Can anyone explain step by step how to get this answer?

Will mark branliest!!

Step-by-step explanation:

28°

Step-by-step explanation:

A = cos⁻¹((12.5² + 30.5² - 20.3²) / (2(12.5)(30.5)))

A = cos⁻¹((156.25 + 930.25 - 412.09) / (2(12.5)(30.5)))

A = cos⁻¹(674.41 / 762.5)

A = cos⁻¹0.88447213...

A = 27.8133685...

A = 27.8°

don’t know sry

step-by-step explanation:

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers