Whats .0091 rounded to the nearest thousandths

Write two subtraction equations that are equivalent to 5 + 12 = 17.

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)