Mr Zeller chose a random group of 8 seventh students. He asked them to write down the amount of money left in their school lunch accounts. Their responses are listed below. $25.00, $34.60, $31.75, $14.10, $19.50, $20.50, $8.75, $13.80

Half of the students in the seventh grade at least $20.00 in their lunch accounts.

B on seventh-grade student has more than 35 in his or her lunch account

Call of the seventh-grade students have more than $10 in their lunch accounts

D the mean amount in the lunch accounts of seventh graders is $24.00

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Step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have