Does it tell you what the rate is that they charge per half hour? If it doesn’t I think the answer is just (x)(11). x being the rate charge per half hour, and 11 being 5.5 times 2. (This answer is for the first question)
Answer:2
Step-by-step explanation:
Multiply
add fractions
1) A. since, if you put the numbers into the equation (one at a time) the equation = 0 each time, which is true.
2) I think I've been taught to complete the square slightly differently
x^2 - 18x - 17 = 0
(x-9)^2 - 81 -17 = 0
(x-9)^2 - 98 = 0
I hope you can get something from that