Answer:
38237329680
Step-by-step explanation:
Use long addition to evaluate.
Step-by-step explanation:
20 x 399 x 5
= (20×5) × 399
= 100×399
= 39,900
Ab^2 (-bc & +bc would cancel out) but then -ab so the answer would just be ab
610,000 is what you are looking for
When you cut a cone parallel to the base , you will see a circle