Allie is a Goldendoodle and she weighs 68 Libs. She goes on diet doggie food, which reduces her weight by 2lbs. She then steals a cheesecake off of the coffee table, which increases her weight by of a pound. What is her new weight after these changes?

67

Step-by-step explanation:

68-2+1= 68-1=67

linear

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".