Which of the following equations have exactly one solution? Choose all answers that apply: A -5.1 + 12 = -12r - 12 -5.2 + 12 = -5x – 12 C --50 + 12 = 52 + 12 D -52 + 12 = 52 - 5​

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a.m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum.how many seats does the larger van have?

If the value of cos330°is√3/2 then find cos 165°.