Tickets to a concert are available online for $25 plus a one-time handling fee of $1.75.
the total cost is a function of the number of tickets bought. what function rule models
the cost of the concert tickets? evaluate the function for 6 tickets.

a.25t + 1.75; $151.75
b.1.75t + 25; $151.75
c.1.75t + 25; $35.50
d.25t + 1.75; $35.50

The right answer is A. 25t + 1.75; $151.75

This problem is given in two ways. First, we need to find the function rule models the cost of the concert tickets. Second, we will evaluate the function for 6 tickets.

First.

Tickets to a concert is a function of the number of tickets bought. Tickets are available for $25. So, if there is no any fee, the function will be:

Since there is a one-time handling fee of $1.75, the function changes into:

Therefore, our first answer is:

Second.

To evaluate the function for 6 tickets, we need to calculate the value . In this function, the input is the number of tickets and the output is the the cost of the concert tickets. Therefore:

Finally, our second answer is:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

the answer is  

c.

14,469 cubic feet

i know this one is right