Hey there!
CHOICE A. j = 4
6j - 3
= 6(4) - 3
= 24 - 3
= 21
Thus, the answer is: 21
CHOICE B. b = 3
b(b) + 5
= 3(3) + 5
= 9 + 5
= 14
Thus, the answer is: 9
CHOICE C. k = 3.5
8 + 4k
= 8 + 4(3.5)
= 8 + 14
= 22
Thus, your answer is: 22
All you had to do was substitute the values of the letters into the equation to find your answer.
For 64 - 3 you have to START at 64 and go BACK 3 spaces DOWNWARD (also known as to the LEFT of the number line) and you should be STOPPED on 61. So, 64 - 3 would most likely be: 61
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)