What is equelateral?

Sand box is 120 cm long 80 cm wide and 25 cm deep what is the number of liters of sand the sand box could hold? What is 47.00 plus 15 percent? Is 55 a rational number? What is 1999999 times 1222? What is the Laplace transform of the third derivative of t squared? Why did it take the goat three hours to finish a twenty paged book? What is 6 and 1 seventh divided by 3 and 2 thirds? Is 0.66666666 a rational number? What is the midpoint of the line segment with end points (-17) and (3-3)? What is a settlement in which each side gives somthing and gains something? 21/89 ples? Are school chairs congruent? The school library charges an overdue book 0.15 for the first day then 0.10 for every additional day george paid a fine of 0.95 for one overdue book how many days was his book overdue? Factor x2-36 equals 0? How do you write 347.347 in word form? How do you do an example for a reciprocals? Is 18 a natural number? How is 3.02 sextillion written? How many face does a 3d cone has? What is the formula used to calculate mechanical advantage?