The answer is c.
a ruler should be used to measure an earthworm
We can put the two equations together with substitution, and we get
3x + 2y = 30
Now we have a single equation in two variables, so we don't have enough information to solve for both x and y.
Answer:
160 inches
Step-by-step explanation:
4*5*8=160
Let h be the inverse function of f,
then we have f(h(x))=x.
According to the formula f(x)=x-12, we have f(h(x))=h(x)-12. But we also know that f(h(x))=x.
So we equalize h(x)-12 and x:
h(x)-12=x, which gives us the function h(x)=x+12.
Answer: h(x)=x+12