What is the final amount if 648 is decreased by 7% followed by a further 20% decrease? Give your answer rounded to 2 DP.

That's how u u derstanded the question

Step-by-step explanation:

So you want 648-7% which equals 647.93

Then you want 647.93-20% which equals 647.73

Tell me if I am wrong or right

i would need to see the dot plot : )

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