Show the calculation you would use to convert the following: . a.) 0.25m to centimeters. b.) 9.8g to kilograms. c.) 35ms to seconds. d.) 4.2dl to liters

In all of these cases you can use proportions:

1.

1m - 100 cm,

0.25m - x cm.

Then, cm.

2.

1 kg - 1000 g,

x kg - 9.8g.

Then, kg.

3.

1 sec -- 1000 ms,

x sec - 35 ms.

Then, sec.

4.

0.1 L - 1 dL,

x L - 4.2 dL.

Then, L.

i just took the test, the correct answer is .. 31.5 in.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm