According to the order of operation, which two operations are performed first? is it adding, dividing, subtraction, or multiplication ?

Mult. and div.

Step-by-step explanation:

Four operations are listed here.  Mult. and div. must be performed first, followed by addition and subtraction.

Order of operations rules are actually more general than this.  Anything (expressions) inside parentheses must be evaluated before other operations take place.  Next come exponential functions, which are evaluated before mult. and div.

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

i’m here for points.