Please help ! I’m so confused

part A step 2 is wrong

part B  equals  52

Step-by-step explanation: because in Part A Fernando should have in step two he multiplied in 4^2  first. and part b equals 52 because if you use PEMDAS correctly you should have add 6+4 first then 8^2 which equals  64 and then you have left 64-4x3 since in PEMDAS you first 4x3 which is 12 and 64-12 is 52 so I hope this helped :)

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option