Neptunes average distance from the sun is 4.5×10^9 km. Mercurys average distance from the sun is 6×10^7 km. About how many times farther from the sun is Neptune the mercury ?write your answer in scientific notation.

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

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares