1. ratio a is equivalent to ratio b. ratio b is equivalent to ratio c. is ratio a equivalent to ratio c? yes

2. you are 13 years old, and your cousin is 19 years old. as you grow older, is your age proportional to your cousin's age? no

looks good

AWSM good job!

so what is the answer

1. To determine if ratio a is equivalent to ratio c based on the given information that ratio a is equivalent to ratio b and ratio b is equivalent to ratio c, we can use the concept of transitivity in ratios. If two ratios are equivalent and one of them is also equivalent to a third ratio, then the first and third ratios are equivalent as well.

In this case, since ratio a is equivalent to ratio b and ratio b is equivalent to ratio c, we can conclude that ratio a is equivalent to ratio c because of transitivity.

2. To determine if your age is proportional to your cousin's age, we can use the concept of proportionality. Two values are proportional if they maintain the same ratio as they change. In this case, we compare your age and your cousin's age.

Since the ages of 13 years and 19 years do not maintain the same ratio as they change (for example, if you become 26 years old, your cousin would become 38 years old), we can conclude that your age is not proportional to your cousin's age.