Answer:
18
Step-by-step explanation:
90-80=10
10*2=20
20-2=18
Answer: 20 minutes
Step-by-step explanation:
She has 45 mins to complete her writing paper.
She spends:
minutes to plan her paper.
She spends:
minutes writing rough drafts.
How much time left does she have?




Simplify the fraction.

So she has approximately,
minutes.
The value of f(1) = 81
Step-by-step explanation:
For the recursive function, f(n+1) = one-half(n)
Thus, when n = 2,
f(3) = 9
If n = 1,
f(2) = 9×3
f(2) = 27
If n = 0,
f(1) = 27 ×3
f(1) = 81
Learn more about Functions:
brainly.com/question/11624077
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Answer:
2/5 or 40% read three books
Step-by-step explanation:
Since 3 out of 5 people read four or more books then the remnaining 2/5 people read three books
The two numbers used in the equation are 70+3. :D