Answer:
3484 
Step-by-step explanation:
a = bh
a = 67 x 52
a = 3484
Okay so first let’s start with 1
8x1 minus 4 = 4
8x7-4= 52
8x8-4=60
8x-8-4=-69
8x9-4=77
Answer:
The answer is 10,000 you jut grab the 1 and put the rest of the zeros after thats a short cut you can use.