Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer. 1 inch ≈ 1.578 × 10 -5 miles.

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

What is the solution of the systems of equations? y=2/3x+3 x=-2

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap