Find the value of x such that the data set has the given mean 99, 86, 76, 95, x; mean 91 a) x =91 b) x=87 c) x=82 d) x=99

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

X+ y = 5 ; x - y =3 solve using linear combination