Write out the sum.
A. 
+ 
+ 
+ ... + 
B. 0 + 
+ 
+ ... + 
C. 
+ 
+ 
+ ... + 
D. 1 + 
+ 
+ ... + 
Answer: C
Mathematics
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Translate to an equation and solve.2.1 is what percent of 4?
A. 57.5% B. 50.5% C. 53.5% D. 52.5%
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.x1/3 ? x2/3
A. x2/9
B. 
C. x
D. x2/3
Mathematics
Round each number to its largest place value to estimate the quotient.898,539 ÷ 35
A. 225 B. 22,500 C. 2000 D. 20,000
Mathematics
Find the difference and simplify the answer. 
A. 
B. 
C. 
D. 
Mathematics