Do you have good methods to calculate percentage mentally? Plz give me some good tips. I will also be giving BRAINLIEST

well me if I want to find a percentage of a number I turn the percent into a decimal.

Step-by-step explanation:

Example- 15% of 60

0.15*60= 9

15% of 60 is 9

If trying to find precentages Like 75% first try to find 50% and 25% and add them together.

Step-by-step explanation:

for example:

75%=50%+25%

to find 50% well just divide the number by half and to find 25% divided the number by 4. Then add these number to get 75%!

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

v,jhvljh,b.b; hk; ljujb,vuvccklokll; k,m,km,

step-by-step explanation: