If you eat in a restaurant and your bill is 45$. what percent tip will you leave?( Assume the service was good) How much will that be? what is the total?

$55

Step-by-step explanation:

I would give them a $10 dollar tip if their service was good.

Some people do 15%-20%. or double the tax on the bill. What I would do is 20%, that would be 45*20%=9 or for. so the total would be $54. for 15% you would calculate 15%*45=6.75, so the total would be $51.75.

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".

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled