Me rn plz hurry plz plz plz will give brainliest come answer me ! | find the missing measures for the rectangle. l = w = 2 cm a = p = 25 cm 12.5 cm; 21 cm2 10.5 cm; 21 cm2 12.5 cm; 25 cm2 10.5 cm; 25 cm2

We know that
[area of rectangle]=l*w
[perimeter of rectangle]=2*[l+w]
w=2 cm
P=25 cm
so
[perimeter of rectangle]=2*[l+w]> 25=2*[l+2]> l=(25/2)-2---> l=10.5 cm
[area of rectangle]=l*w> 10.5*2> 21 cm²

the answer is
l=10.5 cm
A=21 cm²

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

(x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81