Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. 
B. cannot be simplified
C. 
D. 
Answer: D
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Make the indicated temperature conversion. Round answers to one decimal place if necessary.Andrea's sleeping bag is designed for camping in temperatures of 4°C or warmer. For what Fahrenheit temperatures is her sleeping bag designed?
A. -15.6° F or warmer B. -29.8° F or warmer C. 39.2° F or warmer D. 64.8° F or warmer
Write a system of inequalities whose solution set is the region shown.
A. y ? 2x + 4
y ? 
x + 2
B. y ? -2x + 4
y ? - 
x + 2
C. y ? -2x + 4
y ? - 
x + 2
D. y ? 2x + 4
y ? 
x + 2
Multiply.1 ? 72
A. 1 B. 72 C. 172 D. 0
Solve the problem.Larry has $2,000 to invest and needs $2,500 in 13 years. What annual rate of return will he need to get in order to accomplish his goal? (Round your answer to two decimals.)
A. 3.45% B. 1.45% C. 1.72% D. 2.45%