Write 1/1000 as a power of 10 using negative exponents.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.

1=b 2=c 16=c can i get brainliest