Respuesta :

Answer: Down Below

Step-by-step explanation: y=ab^x

20=ab^0=a

so y=20ab^x

5120=20b^x

 256=b^x

can recognize that 256 is 2^8

so the equation is y=20*2^x

Answer:

7(9) ^x

xStep-by-step explanation:

RELAXING NOICE
Relax