Kelsie works at a concert arena. when the price of a ticket is $30, a concert will be attended by 2,500 people. each time the price is raised by an increment of $5, there will be 100 fewer people at the concert. kelsie uses the equation r=(30+5n)(2500−100n) to determine r, the total concert revenue in dollars when there have been n $5 increases in ticket price. which conclusion is valid?
the total concert revenue decreases when the price of a ticket is greater than $30.
the number of people attending the concert is represented by 2500−100n.
the number of times the price is raised is represented by 30+5n.
the cost per concert ticket must be less than $55.

the first question mark is 6 and the second question mark is 26 (the square root)

step-by-step explanation:

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length