Tanner is three years younger than his sister , lexi. the sum of the siblings age is thirty three

Tanner: 15

Lexy: 18

Step-by-step explanation:

Tanner's age: r

Lexy's age: y

r + y = 33

r + 3 = y

If you substitute y into the first equation, you get:

r + r +3 =33

2r = 30

r = 15

Tanner's age is 15 years old.

Lexy's age is 15 + 3 = 18 years old.

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft