They are decreasing 20 miles per hour for every 1 hour in hours 7-10
-20 * 3 / -30 / 3
First multiply the top and divide the bottom to simplify the problem:
-20 * 3 = -60
-30/3 = -10
Now you have -60 / -10
Divide:
-60 / -10 = 6
Account on 2014 is £17,466 when multipliled by 0.025 (interest per year) it will result to £436.65. So the money she had excluding the interest of the said year is £17,029.35 (17,466 - 436.65).
Going back to 2013, she withdraws £1000. If she has £17,029.35 in 2014, we can add £1000 to get £18, 029.35.If we take 2.5% from £18, 029.35. (18,029.35. x 0.025) the result is £450.73. Excluding the interest of year 2013, the money amounts to £17,578.62 (18,029.35 - 450.73), which is the original invested amount on her bank account from year 2012.
How long does it take her to do a lawn? If it took her 5 hours for 1 lawn then it would be $840 for twelve lawns.
She is getting paid $14 an hour.
