The decimal approximations are:
The square root of 5 is about 2.2
The square root of 8 is about 2.8
pi is about 3.14
2 square roots of 5 are about 4.4
The numbers are also placed in order from least to greatest.
I believe that it is 2x^2+1x-2
2x-3 > 11 - 5x
2x + 5x > 11 + 3
7x > 14
x > 14/7
x > 2
Probability to get an bad battery
=10/25
=2/5
Probability that all 4 are bad
=2/5×2/5×2/5×2/5
=16/625
the equation should be 7+2x=t
x=the number if items he gets
t=total
