The senior class plants a school trip to washington dc students should bring money for meals and zuni years they are told to bring at least $65 but no more than a hundred and thirty-five write a compound inequality that represents the amount of money a students can bring

The value of money the students can bring is "sandwitched" between two limits, so we want to "sandwitch" our unknown variable in between two limits.

Let x = money brought.

65<x<135

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

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".