Combine like terms.-3x - 6.4y + 11.1x - 3.5y - 8.1x + 9.9y
A. 7.1x - 5.9y
B. 7.1x + 5.9y
C. 0
D. -7.1x + 5.9y
Answer: C
Mathematics
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Solve the problem.Bob fenced in a rectangular garden in his yard. The length of the rectangle is 6 feet longer than the width and the perimeter is 116 feet. What is the width of the rectangle?
A. 28 ft B. 52 ft C. 26 ft D. 25 ft
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Write as a proportion.12 is to 8 as 6 is to 4.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Use the product and quotient rules, as necessary, to simplify the radical expression.
A. 0
B. 
C. 
D. 
Mathematics
Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a4 when a1 = 1600, r = - 
.
A. -100 B. -20 C. 200 D. -200
Mathematics