Answer:
System of inequalities: 
 ,
 ,  
       
1) Maximum number of sundaes possible = 9 
2) Maximum number of milkshakes possible = 6
3) Combination that uses the most of both Ice-cream and Strawberries = 7 scoop of ice-cream and 1 scoop of strawberries.
Step-by-step explanation:
 Given : A sundae requires 3 ice-cream scoops and 4 strawberries, and a milkshake requires 2 ice-cream scoops and 6 strawberries.
 Ramses wants to make sundaes and milkshakes with at most 25 ice-cream scoops and 37 strawberries. 
Let x denote the number of sundaes he makes and y the number of milkshakes he makes. 
First we represent in tabular form,
                              Sundae(x)            Milkshake(y)           Total 
Ice-cream                  3                           2                         3x+2y
Strawberries             4                            6                         4x+6y
→System of inequalities: 
 Sundaes and milkshake with at most 25 ice-cream scoops=   
 
Sundaes and milkshakes with at most 37 strawberries =  
       
→ Plotting the equations in the graph (figure attached)
1) Maximum number of sundaes possible: 
Maximum no. of sundaes possible when y=0 
From the graph y=0 at x=9.25
Therefore, Maximum number of sundaes possible is 9 
2) Maximum number of milkshakes possible: 
Maximum no. of milkshakes  possible when x=0 
From the graph x=0 at y= 6.167
Therefore, Maximum number of milkshakes possible is 6
3) Combination that uses the most of both Ice-cream and Strawberries:
Combination of both is possible there is a intersection of both the equation
From the graph intersection point is x=7.6 and y=1.1
Therefore,  Combination that uses the most of both Ice-cream and Strawberries = 7 scoop of ice-cream and 1 scoop of strawberries.