Respuesta :

Answer: 84

Step-by-step explanation:

We have, 25% × x = 21
or,

25
--------   × x = 21
100  

Multiplying both sides by 100 and dividing both sides by 25,

we have x = 21 ×

100

25

x = 84

If you are using a calculator, simply enter 21×100÷25, which will give you the answer.

the answer is 84,

you would just multiply 21 by 4