1 square inch = 2.54^2 = 6.4516 square cms
So 5.60 in^2  = 6.60 * 6.4516 =   36.13cm^2 to nearest hundredth
 
        
             
        
        
        
W equals 7 :) you’re welcome
        
             
        
        
        
Type "y=-3x-12x+3" on https://www.cymath.com/answer.php?q=2%3C%3Dx%3C3 CyMath helps so much and can graph, factor, mutiply and more!
        
             
        
        
        
this is as far as i could get. sorry
 
        
             
        
        
        
Answer:
1st sphere has r1 = 6
=> Surface area S1 = 4 x pi x r1^2 = 4 x pi x 6^2 = 144pi
=> Volume V1 = (4/3) x pi x r1^3 = (4/3) x pi x 6^3 =288pi
2nd sphere has r1 = 15
=> Surface area S1 = 4 x pi x r1^2 = 4 x pi x 15^2 = 900pi
=> Volume V1 = (4/3) x pi x r1^3 = (4/3) x pi x 15^3 =4500pi
=> S1/S2 = 144pi/900pi = 0.16
=> V1/V2 = 288pi/4500pi = 0.064
Hope this helps!
:)