No, her time was not faster than either of the two fastest.
27.99 is greater than both 27.97 and 27.93.
Hope this helps you! :)
Yes it is true, it is a simultaneous equation
1. in the tenths place
2. 9 tenths
race entry costs 55, they use 15 of it to cover costs so they get 55-15 = 40 per entry
x = race entries
equation becomes 55000>= 40x +10000
45000>= 40x
x >= 45000/40 >= 1125
they need at least 1125 race entries to make $55,000