plssssss help me correct answer gets brainliest

Answer:
66
Step-by-step explanation:
first layer is really
the area of the base that is 5 and 1/2 *3
our unit is 1/2 so you could fit 2 cubes in 1 unit so the base area has
(2* 5 1/2) * ( 2* 3) = 11* 6 = 66 unit cubes