In order to answer this question, we must break this mathematical expression up into a series of mathematical operations (exponent, multiplication,division, addition, and/or subtraction):
"4 times a number" - The word "times" implies that we have to multiply 4 by an unknown number. We can simply label this unknown number as x.
"cubed" - In order to "cube" a number, we must raise it to the third power, or have an exponent of 3. Our unknown number of x now becomes x3 because we raised it to the third power.
"decreased by 7" - The word "decreased" implies that we must subtract 7 from the product of 4 multiplied by x3
With all of the information we now have, we can form an algebraic expression for this problem.
"4 times a number cubed decreased by 3" now becomes:
4x3 - 7
        
             
        
        
        
Answer:
She will earn 1,920 points.  PLEASE GIVE BRAINLIEST!!!
Step-by-step explanation:
Level 1 : 15 points   x 2 = level 2
Level 2 : 30 points   x 2 = level 3
Level 3: 60 points    x2 = level 4
Level 4:  120 points   x2 = level 5
Level 5:  240 points   x2 = level 6
Level 6:  480 points  x2 = level 7
Level 7:  960 points  x2 = level 8
Level 8:  1,920 points
 
        
             
        
        
        
Answer:
 30%. Based on the given conditions, formulate: 12/40 Cross out the common factor: 3/10 Multiply a number. 
Step-by-step explanation:
 
        
             
        
        
        
That would be around $200. Because you would take 40 devide by .2 and get 200.