Write an expression for “the difference of 10 and x.”

Step-by-step explanation:

The expression for “the difference of 10 and x.”

can be given in two ways:

10 - x

or

x - 10

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

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