Answer:
1. 15 (A)
2. 12 (G)
Step-by-step explanation:
1.  We can make an equation out of this...
     3x+3=48
     x is the age of Geoff which is what we are trying to find out
     
     We have to add 3 to both sides of the equation
     3x+3=48
          -3   -3
      ________
     we end up with 3x=45
      we then have to divide 3 by both sides because its the opposite of                
      multipling
     3x=45
     _____
          3
     we get x=15
2.   We can write a problem statement  
       (2 x 9)-6=?
        multiply 2 and 9 <u>FIRST</u>
       
        18-6=?
        your answer is 12
       Your Welcome! Have a great rest of your day! :)
   
        
      
 
        
             
        
        
        
Here’s the answer, hope it helps. Btw these are screenshots from someone else’s work not mine
 
        
                    
             
        
        
        
Answer: 80
Step-by-step explanation:
 
        
                    
             
        
        
        
The volume of the square base pyramid is 588 ft³
The Volume of the rectangular prism is 120 ft³
The Volume of a rectangular pyramid is 360 ft³
<h3>What is volume of a shape?</h3>
Volume can be defined as the 3-dimensional space enclosed by a boundary or occupied by an object.
Volume of a square base pyramid = 1 / 3 × B × h
where
B = base area
Therefore,
Volume of a square base pyramid = 1 / 3 × 7² × 12
Volume of a square base pyramid = 1764 / 3 = 588 ft³
Volume of a rectangular prism = lwh
Volume of a rectangular prism =  6 × 5 × 4 = 120 ft³
Volume of a rectangular pyramid = 1 / 3 lwh
Volume of a rectangular pyramid = 1 / 3 × 10 × 12 × 9 = 1080 / 3 = 360 ft³
learn more on volume here: brainly.com/question/1578538
 
        
             
        
        
        
Answer:
B) Only (-3, 5)
Step-by-step explanation:
Slot in the options into the equation
(-2, 4), 
Compare with (x, y)
x = -2,  y =4
y =-3x - 4
4 =( -3 * -2 ) - 4
4 = 6 - 4
This is not true hence, option A is wrong
Using (-3, 5)
x = -3, y= 5
5 = (-3*-3) - 4
5 = 9 - 4
This is correct hence, option B is correct
Option c is wrong because (-2,4) is not a solution to the equation
Option D is wrong because option B is correct