Write a numerical expression for the phrase and simplify it.Twice the product of -5 and -7, subtracted from 9
A. (9)(2)(-5)(-7); 630
B. (9 - 2)(-5 ? -7); 245
C. (9)(2)(-5 + 7); 36
D. 9 - 2(-5 ? -7); -61
Answer: D
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Add and simplify.
+ 
A. 
B. 2
C. 
D. 
Solve the problem.A computer printer costs $400. If the sales tax rate is 10
%, how much tax is charged and what is the total price? Round your answers to the nearest cent.
A. $38.00, $438.00 B. $46.00, $446.00 C. $420.00, $820.00 D. $42.00, $442.00
Refer to triangle ABC. If 
m, 
m, and 
align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_f6ffd0a6d78549128b10f9799" />, find a. ? Apply the rules regarding the use of significant digits after all computations are complete. ? A. 8.5 m B. 9.9 m C. 9.5 m D. 9.3 m E. 8.9 m
Solve the problem.There are 16 more sophomores than juniors in an 8 AM algebra class. If there are 58 students in this class, find the number of sophomores and the number of juniors in the class.
A. 74 sophomores; 42 juniors B. 58 sophomores; 42 juniors C. 37 sophomores; 21 juniors D. 21 sophomores; 37 juniors