Anewspaper reports the following changes in the temperature of a city over 4 days: 2.34 degrees celsius, negative 2 over 7 (2/7)degrees celsius, −0.45 degrees celsius, 3 over 8(3/8) degrees celsius write an expression to    show the average daily change in the temperature of the city. write the steps to solve the expression. round your answer to the nearest hundredth. p. s 2/7 and 3/8 are fractions

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.