There are 25 students in mrs. venetozzi’s class at the beginning of the school year, and the average number of siblings for each student is 3. a new student with 8 siblings joins the class in november.

Adding the student with eight siblings will increase the class average amount of siblings because this student has more siblings than the average.

The new class average for number of siblings is 3.19

Therefore, the average number of siblings that each student has is larger than the original average.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

the answer is  

a.

28 ft2

step-by-step explanation: