Solve the problem.The profit function for sales of two models of television sets at a chain discount store is given by 
where x is the number of sales per week of model A, and y is the number of sales per week of model B. Find 
and interpret the result.
A. 
At a sales level of 10 units of model A and 15 units of model B, increasing sales of model A by one unit and holding sales of model B at 15 units will increase profit by approximately $60
B. 
At a sales level of 10 units of model A and 15 units of model B, increasing sales of model A by one unit and holding sales of model B at 15 units will increase profit by approximately $80.
C. 
At a sales level of 10 units of model A and 15 units of model B, increasing sales of model A by one unit and holding sales of model B at 15 units will increase profit by approximately $140
D. 
At a sales level of 10 units of model A and 15 units of model B, increasing sales of model A by one unit and holding sales of model B at 15 units will increase profit by approximately $120
Answer: B
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Translate the English expression into an algebraic expression. Use x to represent the unknown number.The square root of a number
A. x2
B. 2x
C. x + x
D. 
A 
-cup serving of fruit contains 15 g of sugar. How much sugar is in 2
cups of this fruit?
A. 65 g
B. 37
g
C. 18
g
D. 75 g
Determine if the given solution is correct. If it is not, find the solution.Is 
the solution to -10x = -15
A. yes
B. no; x = 
C. no; x = 
D. no; x = 150
Translate into a variable expression. five less than p
A) p – 5 B) p + 5 C) 5 – p D) 5p E) p/5