Five students measure their height using different units. Andrew is 176 cm, Brittney is 5'4", Calvin is 1.8 yards, Don is 54 inches, and Elisha is 1.6 metres. Arrange the students from shortest to tallest.

I don't know how to deal with different units!

A truck driver is entering a parkade that says the maximum height of a vehicle is 8'6". If the height of the truck is 3 m, should the driver proceed into the parkade?

" and m are different units! How do I do this question?

just convert everything to the same unit, say cm.

1 inch = 2.54 cm, so

176 cm = 176 cm
5'4" = 64" = 162.56 cm
1.8 yd = 64.8" = 164.59 cm

and so on

For the truck, just look up the conversion for feet-to-meters. 8'6" = 8.5 ft...

To compare the heights of the five students, you need to convert all the measurements to a common unit. In this case, we can choose centimeters (cm) as the common unit.

Here's how you can convert each student's height to centimeters:

1. Andrew: Already given in centimeters.

2. Brittney: Convert 5 feet 4 inches to centimeters.
- 1 foot = 30.48 cm
- 1 inch = 2.54 cm

So, 5 feet 4 inches = (5 * 30.48) + (4 * 2.54) = 162.56 cm

3. Calvin: Convert 1.8 yards to centimeters.
- 1 yard = 91.44 cm

So, 1.8 yards = 1.8 * 91.44 = 164.592 cm

4. Don: Convert 54 inches to centimeters.
- 1 inch = 2.54 cm

So, 54 inches = 54 * 2.54 = 137.16 cm

5. Elisha: Already given in meters.
- 1 meter = 100 cm

So, 1.6 meters = 1.6 * 100 = 160 cm

Now that we have all the heights in centimeters, we can arrange the students from shortest to tallest.

1. Don: 137.16 cm
2. Brittney: 162.56 cm
3. Elisha: 160 cm
4. Calvin: 164.592 cm
5. Andrew: 176 cm

To answer the second question, you'll need to convert the height of the truck to feet as the maximum height allowed in the parkade is given in feet.

1 meter = 3.28 feet

So, 3 meters = 3 * 3.28 = 9.84 feet

Since the height of the truck (9.84 feet) exceeds the maximum height allowed in the parkade (8'6" or 8.5 feet), the driver should not proceed into the parkade.