21 its 21 because it is 21
Answer:
the equation would be y=1/2x-9/2
Step-by-step explanation:
next time try to put the answers like the question did because that's always helpful
What 3D figure/shape is it?
Answer:
Four times his sister's age would be 4b. his age is two years less, so we need to subtract 2.
put together, this is 4b - 2.
