Sin2x - căn 3 cos2x + 2 = 0

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a. about 4 b. about 8 c. about 40 d. about 21

Which graph represents the function g(x) = |x + 4| + 2?