Answer:
b
the points make a sad face on the graph and if you do the vertical line test you can see that its a function

<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>

We have to combine the like terms
From given expression,

By distributive property,
The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.
a(b + c) = ab + bc
Therefore,
Solve for brackets using distributive property

Add 1/7 and 6/7

Thus the equivalent expression is found
The last one is the correct one.
Answer:
The number of hundreds is more than the number of tens.
Step-by-step explanation:
The sum of 56 tens and 4 ones= 560 + 4 (true)
The number of hundreds is more than the number of tens.
Number of hundreds = 5
Number of tens = 56
5 is not greater than 56.
Expected value of the bet is
the sum of the products of value of outcome and its probability,
less the amount paid to place the bet.
Outcomes value probability
win 225 1/4
lose 0 3/4
cost of bet = 40
So expected value of bet
E[X]=225*(1/4)+0*(3/4)-40
=56.25-40
=16.25
This means that in the long run, gambler will win, since the expected value is positive. (does NOT mean she will win in the next bet!)