Let
x---------> the number of pounds of pears
y---------> the number of pounds of apples
z---------> the total cost
we know that
z=0.92*x+1.10*y------> equation 1
x=3.75 lb-------> equation 2
y=2.1 lb -------> equation 3
Find the total cost
Substitute equation 2 and equation 3 in equation 1
z=0.92*(3.75)+1.10*(2.1)--------> z=3.45+2.31------------> z=$5.76
therefore
the answer is
$5.76