Sides of three square rooms measure 13 feet each, and sides of two square rooms measure 15 feet each, which expression shows the total area of these five rooms?
a (3 x 13^2) + (2x15^2)
b (2x13^3) + (2x1542)
c (3x15^2) + (2 x 1342)
d. (3x13^2) * (2*15^2)

The answer is A.

Step-by-step explanation:

The area of a square is :

A = a^2

For the three square rooms its area:

A = 3 x 13^2

A = 3x 169

A = 507ft

convert feet to meter which is

1foot = 0.305meters

Therefore 507ft = 0.305 x 507

A= 154.6m^2.

For the two square rooms its area;

A= 2 x 15^2

A= 2 x 225

A = 450ft to meters

A = 137.2m^2

Total area= 154.6 + 137.2m^2

Total area= 291.8m^2.

the amount you'd have after the work is $1.55

step-by-step explanation:

you subtract 95% from $31.