Surface Area of a Cuboid: Worded problems

Ezequiel wraps a gift for his friend Dana.

The gift is a doll in whose box is packaged $20X30X70$ cm.

How many square meters of wrapping paper will Ezekiel need?

0.82 cm²

There are two boxes containing a number of balls arranged one on top of the another.

The dimensions of the balls are: 1x1x1.

Assuming that you can see the bottom of the boxes, in which box can you see more balls from the outside?

_{^{Box B}}

A beekeeper has two box hives as shown below.

Each "cell" takes up 0.5 cm² and the entire hive is lined with them.

Which of the hives will have more more cells? How many will there be in it?

^{B: $8x^2+240x$ cells}

Renovations began at a municipal swimming pool. As part of the renovations, the pool is being resurfaced with custom-made tiles.

$\frac{1}{2}x\cdot x\cdot\frac{1}{4}x$ (in meters).

Dimensions of the pool: depth of 5 mts.

length 20 mts.

width 10 mts.

Express the number of tiles used using x.

$\frac{4000}{x^3}$

Eduardo wants to repaint the clock tower.

Eduardo paints 2 m² per hour. In total, it takes him 18 days and one hour to repaint the clock tower.

Calculate x.

12 m