11. A square sandbox has sides of length 9 ft and a depth of 1 ft. If sand costs $6 / cubic foot, how much will it cost to fill the sandbox with sand? O a) $150 O b) $216 O C) $294 o d) $384 O e) $486 12. Find the area of a rhombus with sides of length 17 m and a height of 3 m. O a) 26 m O b) 51 m 2 2 O c) 57 m o d) 60 m o e) 63 m 2