I need to find the surface area of the square pyramid!
(I know I'm stupid lol)

L = 260 cm^2

Step-by-step explanation:

heighth = 12 cm

slant heights = 13 cm

side lengtha = 10 cm

lateral edge lengthe = 13.928388277184 cm

1/2 side lengthr = 5 cm

volumeV = 400 cm^3

lateral surface areaL = 260 cm^2

base surface areaB = 100 cm^2

total surface areaA = 360 cm^2

Genda: h = height

s = slant height

a = side length

e = lateral edge length

r = a/2

V = volume

L = lateral surface area

B = base surface area

A = total surface area

The relationship of the number of months and the total amount paid is proportional for both Hanks and Lynn.

Step-by-step explanation:

Let us divide the equation into 2 parts.

Hanks

Hank paid $2000 up front when he bought the car and he pays $200 every month. Therefore, the total amount paid (y)  and the number of month (x)can be expressed as follows.

Let

x = number of month

y = total amount paid

y = 2000 + 200x

The relationship between amount paid and the number of months is proportional

Lynn

She did not paid anything upfront but she paid $275 every month. Therefore,

x = number of month

y = total amount paid

y = 275x

This relationship between amount paid and number of month is directly proportional