Using the powers of 9, it is found that the last digit of the product will always be either 1 or 9.
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The multiplication of as many 9's as you want is equivalent to the powers of 9, which are:
....
Thus, the last digit of the products will always be either 1 or 9.
A similar problem is given at brainly.com/question/20692373
Answer:
32.40
Step-by-step explanation:
81 x 40% =48.60
81. -48.60 = 32.40
This would be 4 * sqrt25 - 0
----------------- = sqrt25 = 5 answer
4 - 0
You will need 12 pizzas to feed 36 people.