Yes is equivalent because 12 x 4 is 48 and 5x5 is 25
A= 2 to the power of -1
Because if it's the same base no in multiplication we add the indices and in division we subtract the indicies
The total number of students is 250 from the solution in the image.
L=7+w
P=(12x+14)=2(6x+7)
l+w= P/2 = 2(6x+7)/2= 6x+7
l+w=6x+7
2l = 6x+7
l = (6x+7)/2
l=7+w
-> w= l-7
= [(6x+7)/2] -7
= (6x+7-14)/2
= (6x-7)/2
I think its D i got 23 but 24 is the closes