$900 ÷ 30 = 30
Greg earns $30 per window last month.
30 + 2 = 32
Greg earns $32 per window this month.
32 x 30 = 960
Greg earns $960 for washing 30 windows this month.
Answer: $960
Answer:
i.e. 393650 kg.
Step-by-step explanation:
Given that Radium-226 is a radioactive substance with an annual decay rate of 0.04 %
Let the year 1937 be 0 year
Initially population was = 400,000 kg
Since decay rate is 0.04% per year after t years population would be
=
In 2017, t = 40 years (i.e. years lapsed form 1937)
Hence population
=
i.e. 393650 kg.
5 + (-10) = 5 - 10
= -5 .
5 + (-3) = 5 -3
=2 .
5 + 3 = 8 .
5 + 0 = 5 .