A 2-column table with 4 rows. Column 1 is labeled Price with entries 3 dollars and 50 cents, a, b, c. Column 2 is labeled Gallons Purchased with entries 1, 3, 5, 7.
Mary Lou is with her mother at the gas station. She is trying to figure out how much it will cost to fill up the car’s gas tank. Use the unit rate to complete the table for the price of each quantity of gasoline.
a =
b =
c =

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".

0.02040816326

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

im not sure what this means: mc011-7.jpg

step-by-step explanation: