Answer:
3* (b+9) = 4
Step-by-step explanation:
b is the unknown number
Three times the sum of a number and 9 is 4.
3* (b+9) = 4
Answer: 3/2a3
I can't properly write the answer sorry but it's the last one.
the awnser is -6
im very sure let me know if im wrong.
Answer:
Step-by-step explanation:
f(12)=-2/3(12)+5
f(12)=-8+5
f(12)=-3
Answer:

Step-by-step explanation:
There are only 2 solutions for none of the rooks can capture any of the other rooks: only if they are laid out in either of the 2 diagonal of the chess board
The number of possible combination for the rock to laid out in 8x8 (64 slots) chess board
possible combination
So the probability is pretty thin
