Answer:
7(9) ^x
xStep-by-step explanation:
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
3.5m questions
4.5m answers