Write the expression in standard form.
A. -2i
B. -2
C. 2i
D. 2
Answer: C
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Solve the problem.Matt is going to invest no more than $4000 in two accounts earning 2% and 4% simple interest. He would like the accounts to earn at least $80 after one year. He wants to invest more than $1000 in the account earning 4% simple interest. Write a system of inequalities to describe this situation and solve by graphing.
A. 
B. 
C. 
D. 
Graph the solution of the rational inequalities on a number line and write the solution in interval notation;.
? 0
A. 
B. 
? [4, ?)
C. 
D. 
? (4, ?)
Provide an appropriate response.In right triangle ABC with right angle C, find the indicated part. Round to four significant digits. Find b if A = 65.5° and c = 6 m.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.In a school survey, students showed these preferences for instructional materials. Answer the question. 
About how many students would you expect to prefer radio in a school of 300 students?
A. About 108 students B. About 15 students C. About 5 students D. About 54 students