How do you understand of in the math class?

How many inches equal one twelve of a foot? When 2 square numbers are subtracted the answer is 21 what are the 2 square numbers? What prime numbers to you times together to get 441? When using the recreational dive planner table you should ascend no faster than what per minute? How far away is Saturn from the sun in Scientific Notation? When 20 percent of a number is added to the number the result is 60 What is the number? How many cubic yards in a 20' wide by 30' long by 6 inches thick? What is C 30 mean? How many outputs are possible for 4 input decoder? How much is 57 kilos in ibs? How many cents equal to a quarter? How many yard of cement - slab size 3 ' x 10' x 4? Why do photos of stars typically show four lines emanating from the stars at right angles to each other? How do you shrink tiny? How do you turn inches into linear feet? What is 49.42 in expanded form and word form? How is a cone and pyramid alike? How do you evaluate your own competence when at work? How much dirt for a hole 3'x6'x12? How do you write 0.59811 in word form and in expanded form?