-7
To find the units digit of (29^{57}), we can focus on the units digit of the base, which is 9. The units digits of powers of 9 follow a pattern: (9^1 = 9), (9^2 = 81) (units digit 1), (9^3 = 729) (units digit 9), and (9^4 = 6561) (units digit 1). This pattern alternates between 9 and 1. Since (57) is odd, the units digit of (29^{57}) is the same as that of (9^{57}), which is (9). Thus, the units digit of (29^{57}) is (9).
117 units
There are: 13*9 = 117 square units
3.61 units
13 x 9 = 117 square units
13*9 = 117 square units
There are: 13*9 = 117 square units
9 hundreds, 2 tens and 8 units
117 units
There are: 13*9 = 117 square units
3.61 units
Multiply 13 by 9 and you get 117 square units.
13 x 9 = 117 square units
13 times 9 = 117
13 x 9 = 117
117
Perimeter = 2*(7+9) = 32 units.