Add. Simplify, if possible.-422.69 + 566.08
A. -988.77
B. 143.39
C. -143.39
D. 988.77
Answer: B
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If 
represents the cost of purchasing b belts, e pairs of earrings, and n necklaces, then we can use 
to indicate the cost of buying 2 belts, 4 pair of earrings, and 1 necklace.
Answer the following statement true (T) or false (F)
Calculate the flux of the field F across the closed plane curve C.F = xi + yj; the curve C is the closed counterclockwise path around the rectangle with vertices at 
and 
A. 73 B. 48 C. 55 D. 0
Solve the problem.Paul has grades of 74 and 80 on his first two tests. What must he score on his third test in order to have an average of at least 80?
A. at most 78 B. at most 80 C. at least 86 D. at least 77
Write out the first five terms of the sequence.an = n- 5
A. -5, -4, -3, -2, -1 B. 4, 3, -2, -1, 0 C. -4, -3, -2, -1, 0 D. 4, 3, 2, 1, 0