First, use front end rounding to estimate each answer. Then find the exact answer.Linda's stock fund lost an average of 
each month. How much did the fund lose over a one-year period?
A. estimate: 
? 12 = 
; exact: 
? 12 = 
B. estimate: 
? 10 = 
; exact: 
? 12 = 
C. estimate: 
? 10 = 
; exact: 
? 12 = 
D. estimate: 
? 12 = 
; exact: 
? 12 = 
Answer: B
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Multiply. Leave the answer in factored form when appropriate.
? 
A. 
B. 
C. 
D. 
Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.r = 4.5 in.
A. 14.1 in.; 56.5 in.2 B. 14.1 in.; 254.3 in.2 C. 28.3 in.; 28.3 in.2 D. 28.3 in.; 63.6 in.2
Solve the following system of linear inequalities by graphing.3x - y ? 6x + 4y ? 8
A. 
B. 
C. 
D. 
Add or subtract as indicated. If terms are not like radicals and cannot be combined, so state. Assume all variables represent nonnegative real numbers.10
+ 13
+ 7
+ 30
A. 60
B. 62
C. 30
+ 30
D. 30