Ou know Part B

Miguel selects five DVDs to purchase. A few of the DVD cases appear to be

damaged, so the manager gives Miguel a 20% discount on his entire purchase.

Miguel tries to guess how much money will be deducted from the total cost.

What is a reasonable estimate of the cost of the DVDs before tax is added?

What is the actual cost before tax?

The cost is 5 for 37.50

repeat the question

step-by-step explanation:

answer: c i think

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".

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of