What is the total surface area of a rectangular prism that is 4 inches deep, 5 inches high, and 15 inches across?

The total surface area of a rectangular prism is 310 inches

Step-by-step explanation:

The surface area of rectangular prism can be found using formula

Surface Area = 2 (lw+hl+hw)

Where l = length

h = height

w = width

We are given:

l = 4

h = 5

w = 15

Putting values in the formula:

Surface Area = 2 (lw+hl+hw)

Surface Area = 2 ((4*15) + (5*4) + (5*15))

Surface Area = 2 (60+20+75)

Surface Area = 2 (155)

Surface Area = 310 inches

So, The total surface area of a rectangular prism is 310 inches