Witch one is good luck this is for extra

Step-by-step explanation: Ok so we know that a foot equals 12 inches

so 12 times 4 is what? Right! 48

Then we to some of my favorite thing, ADDING

Ok so

48+45 = 85

Then we still have to add 5 to that so we do

85+5= 90

So the answer is D, I see you have another problem underneath this one, if you need help with that one just post it and I can do it!

P.s.   I think you meant "which" not "witch" here is a trick, see how the top of the T in witch can be made into a little triangle, it is kinda like a witch hat so that is how I remember

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".

attachment?

step-by-step explanation: