Dad is twice as old as Jon. Grand-Pa is seven years older than three times Jon's age. The sum of their age is 145 years. How old
1 answer:
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Answer:
1. 7^(x-y)
2. z^5x^y
Step-by-step explanation:
The applicable rule of exponents is ...
(a^b)/(a^c) = a^(b-c)
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1.
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2.
Answer: $300
Step-by-step explanation:
Mr. Calvin earned
He spent on food i.e.
Remaining money =
So, he saved $300 after expenses