Answer:
12
Step-by-step explanation:
2a+3b=2*4+3*(-2)=8-6=2
4a+5b=4*4+5*(-2)=16-10=6
the product is 2*6=12
you need to multiply 4 by 5
compare (1/2)^3 is greater than (a/b)^2
1/2*1/2*1/2= 0.125 or 1/8
1/4 * 1/4=0.0625 or 1/16
It’s A. 13
hope this helps