Answer:

Step-by-step explanation:
Given

Required
Rewrite and identify a, b and c
The required form is:

Equate both expressions

Rewrite as:

Compare the expressions on either sides

60 pens/ A dozen pens= 5 packs of a dozen pens
$44*5= $220 total spent
$20*60=$1200 total money a trader gets
$1200-$220=$980 in profits.
Hope I didn't mess up for your sake.
Consecutive integers mean one after the other and their difference would one more or less.
Let the numbers be x, x +1, x +2.
Therefore x + (x+1) + (x +2) = 567
3x + 3 = 567
3x = 567 -3 = 564
3x = 564 Divide by 3.
x = 564/3
x = 188
Therefore integers x, x +1, x +2 = 188, 188+1, 188+2.
= 188, 189, 190.
Cheers.
Answer:
11
Step-by-step explanation:
(2×3)^2 = 6^2 = 36
5^2 = 25
(2×3)^2 - 5^2 = 36 - 25 = 11
Answer:
The second one:
L∪J={i,j,k,l,m,n,o}
Step-by-step explanation:
The union is the elements listed in either set.
So since l,m,n, and o are elements of set L, they will also be elements of whatever it is "unioned" with.
Since i,j,k,l and m are elements of set J, they will also be elements of whatever it is "unioned" with.
When you write the union, just be sure to include each element that occurs in either set once.
So the union of L and J is {i,j,k,l,m,n,o}.
The answer is the second one.
The intersection would actually be that upside down U thing, the ∩ symbol. The intersection of two sets is a list of elements that both sets include. So here the intersection would just consist of the elements l amd m.