Select proportional or not proportional to correctly classify each pair of ratios 3/7 and 8/28

Not Proportional.

Step-by-step explanation:

We are given a pair of fractions/ratios 3/7 and 8/28.

We need to check if 3/7 and 8/28 are in proportion or not.

In order to check if those are in proportion, we need to convert both denominators as same denominator.

Second fraction 8/28 has 28 in it's denominator.

Let us convert denominator of 3/7 as 28.

In order to convert denominator 7 as 28, we need to multiply top and bottom of fraction 3/7 by 4, we get

We can see that 12/28 ≠ 2/28.

2

step-by-2step explanation:

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg