Hey . A shopkeeper counted the amount of money that she had in her cash register at the end of the day. She found that she had:
$85 in one-dollar notes
$125 in five-dollar notes
$150 in ten-dollar notes
$420 in twenty-dollar notes
$500 in hundred-dollar notes.

(a) Determine the number of notes for each type of bill.

Can someone plz help me plz plz

151 notes

Step-by-step explanation:

$85/1=85 notes

125/5=25 notes

150/10=15 notes

420/20=21 notes

500/100=5 notes

85+25+15+21+5=151 notes total

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".