Julissa has 15 stamps and ethan has 14 stamps. pawel has three times the number of stamps as julissa and ethan combined. julissa thinks that 100 is a reasonable estimate for the number of stamps that pawel has. what is an estimate of the number of stamps that pawel has? is 100 a reasonable total 32; 100 is a reasonable total 90; 100 is a reasonale estimate 213; 100 is not a reasonale estimate 630; 100 is not a reasonable estimate

90; 100 is a reasonable estimate

Step-by-step explanation:

Given,

The number of Stamps Julissa has = 15,

Also, the number of stamps Ethan has = 14

So, the total number of stamps both Julissa and Ethan have = 15 + 14

= 29

According to the question,

The number of stamps that Pawel has = 3 × the combined number of stamps both Julissa and Ethan have

= 3 × 29

= 87

≈ 90 ( nearest tens )

Also, the nearest hundred of 87 is 100,

Hence, 100  is a reasonable estimation,

SECOND option is correct.

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64