Calculate using the rules for order of operations.20 - 
+ 2 ÷ 9 ? 102Round to two decimal places, if necessary.
A. 0.02
B. 16.00
C. 38.22
D. 200.00
Answer: C
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Use set notation to list all the elements of the set.{x : x is an integer between 14 and 17 inclusive}
A. {15, 16} B. {14, 15, 16, 17} C. {15} or {16} D. {13, 14, 15, 16, 17, 18}
Write the expression as one logarithm.logb x + logb y
A. logb xy B. log2b (x + y) C. log2b xy D. logb (x + y)
Combine like terms when possible. 15r - 3r6 - 5r6 + 15r
A. 22r B. 22r6 C. 30r - 8r6 D. cannot be simplified
Solve the problem.Paul Nagel invested some money at 4.5% simple interest and $7000 more than that amount at 2.5% simple interest. After 1 year, his total interest from the two accounts was $455. How much did he invest at each rate?
A. $5000 at 4.5%; $11,000 at 2.5% B. $5000 at 4.5%; $10,000 at 2.5% C. $4000 at 4.5%; $11,000 at 2.5% D. $4000 at 4.5%; $12,000 at 2.5%