Can someone please answer this question please answer it correctly and please show work please please I need it please help

13. $55.50 - $29.25 = $26.25

$26.25 ÷ 5 = $5.25

C. 29.25 + 5t = 55.5; t = $5.25

11. $500 - $119.75 = $380.25

$380.25 ÷ $2.25 = 169

C. 119.75 + 2.25p < 500; p < 169

16. 8 + 7 + 3 + 42 = 60

42/60 = 0.7

540 × 0.7 = 378

B. About 380 students take the bus to school

17. 25% increase = 125% = 1.25

280 × 1.25 = 350

350 × 9 = 3,150

3,150 - 3,114 = 36

A. He will break the record by 36 yards

19. 25,000 - 17,500 = 7,500

7,500 ÷ 2,500 = 3

C. Greater than 3

22. 17.55 ÷ 5 = 3.51

A. 3.51 feet

23. A negative number divided by a positive number is still negative, so fractions will be equivalent regardless of the negative symbol being with the numerator or denominator.

B. 9/-16

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".

l.ln.lln.k.nkl

step-by-step explanation: