Simplify the expression by performing the indicated operations.
? 
+ 
? 
A. 32
B. 10
C. 18
D. 4
Answer: C
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Estimate the sum or difference by rounding each number to the nearest hundred.6574 - 1239
A. 5300 B. 5400 C. 5000 D. 5335
Determine the degree of the polynomial.-a + 8a3 - 4a7 + 2a2
A. 4 B. 12 C. 7 D. 13
Solve the problem.As Sunee improves her algebra skills, she takes 0.9 times as long to complete each homework assignment as she took to complete the preceeding assignment. If it took her 55 minutes to complete her first assignment, find how long it took her to complete the fifth assignment. Find the total time she took to complete her first five homework assignments. (Round to the nearest minute.)
A. 32 min; 189 min B. 32 min; 225 min C. 36 min; 225 min D. 36 min; 189 min
Evaluate the expression without using a calculator.ln e6x
A. 6x
B. -6x
C. 
D. e6x