Correct the error in the following equation. y=x² +18x +71 y-71 = x2 - 18x – 18 y-71 - 18 = (x-9) y=(x-9)2 +89 A. The equation is correct. B. y-71- 18 = (x – 9) should have been y-71- 18 = (x–9)(x +9) instead. C. X? - 18x - 18 should have been x2 + 18x + 81 instead. D. The solution should be y= (x +9)2 +89 instead.

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!

16.80 times .20= 3.36

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the answer is c

step-by-step explanation: i took a test with this question on it