An account contains A dollars and increases or decreases by R%. For A and R: (a) Find the increase or decrease in the value of the account. (b) Find the value of the account. (c) By what factor did the account value increase or decrease? A = $550, R = -50%
A. (a) -$285;
(b) $285;
(c) 0.5
B. (a) -$265;
(b) $265;
(c) 0.1
C. (a) -$275;
(b) $275;
(c) 0.5
D. (a) $275;
(b) $825;
(c) 0.9
Answer: C
Mathematics
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