If i earn £10,890 in a year, how much would i have for 3 and a half years

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)