Answer:
7x+39>=53 and 16x+ 15>31 x>=2 (no solutions exist)
Step-by-step explanation:
The answer is a because 3/5 equals 0.6
I believe its 838 inches squared
we have given that
.
we need to find
.
we know that we need to plug t in place of x in the equation f(x)=2^x.
.for example for 
they have plugged 4 in place of x. so we plug in plug t in place of x .