Trent had 19 stickers. He bought 29 stickers from a store in the mall and got 18 stickers for his birthday. Then Trent gave 8 of the stickers to his sister and used 3 to decorate a greeting card. How many stickers does Trent have left?

45 stickers left

Step-by-step explanation:

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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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