4. A square of area 81 cm2 is used to
make a rectangle of the same
perimeter. Which dimension below is
possible for such a rectangle?
A.
B.
3 cm by 6 cm
7 cm by 9 cm
6 cm by 12 cm
1 cm by 18 cm

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.

hard

step-by-step explanation:

(x) - (y) = (1 + 4i)

just took the test and my answers down below!

step-by-step explanation:

check the pic :