Answer:
Step-by-step explanation:
If it is a fair coin, he should expect heads about 1/2 the time.
1/2 of 30 = 15
He should expect 15 heads.
Answer:
1.
Step-by-step explanation:
The thing is, x^0 is always 1. So even if you simplify, it will still be 1.

In general, 23 more than a number is written as

In our case, x is 'twice a number'; thus,

Finally, the whole expression is

<h2>The answer is 2n+23</h2>
465•10-5
(That -5 is suppose to be an exponent