Answer:
413.03
Step-by-step explanation:
405 increased by 8.3 is 405+8.3.

Answer:
The answer is 360
Step-by-step explanation:
the formula for the volume of a rectangular based pyramid is 1/3 times the base area times the height and the height is given as 15 cm the base parameters are 9 and 8 respectively so deep area of the rectangular base is 9 * 8 * 15 that is 1080 x 1/3 which is 360
Answer:

<h2>Percentage change is 71.43%.</h2>