The length of a brick is 100 millimeters. the end is 3 cm. the height is 2 cm. convert mm to cm and calculate the volume.

60 cm³

Step-by-step explanation: To calculate the volume, all the mesurements MUST be in the same unit.

As a requirement of the problems, we need to change the length to cm. For the length, we have that 10 mm = 1 cm, so 100 mm = 10 cm.  Note that that is linear.

Volume (V) = L x E x H = 10 cm x 3 cm x 2 cm = 60 cm³

The index of the Volume unit is very important.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)