Multiply. Write the answer in simplest form.2 ? 5
A. 10
B. 10
C. 9
D. 10
Answer: B
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Solve the problem.Find the number of units that must be produced and sold in order to yield the maximum profit, given the following equations for revenue and cost:R
= 5xC
= 0.01x2 + 0.7x + 40.
A. 285 units B. 215 units C. 430 units D. 570 units
Provide an appropriate response.Perform the indicated operation and write the answer with positive exponents in simplest form: 
1/3
What will be an ideal response?
Sketch the graph of the equation. Identify the vertex and the intercepts.y = x2 + 7x + 10
A. Vertex: 
;
x-intercepts: (-2, 0) and (-5, 0);
y-intercept: (0, 10)
B. Vertex: 
;
x-intercepts: (2, 0) and (5, 0);
y-intercept: (0, 10)
C. Vertex: 
;
x-intercepts: (2, 0) and (5, 0);
y-intercept: (0, 10)
D. Vertex: 
;
x-intercepts: (-2, 0) and (-5, 0);
y-intercept: (0, 10)
Solve.It took Sara's mother 2 hours round trip to drive to the University and bring Sara back home for spring break. If the University is 49 miles from home, find her mother's average speed.
A. 24
mph
B. 49 mph
C. 50 mph
D. 55
mph