Tristan and his children went into a restaurant and will buy hotdogs and tacos. Each hotdog costs $4 and each taco costs $3. Tristan has a total of $30 to spend on hotdogs and tacos. Write an inequality that would represent the possible values for the number of hotdogs purchased, h, and the number of tacos purchased, t

Each of 14 refrigerators of a certain type has been returned to a distributor because of an audible, high-pitched, oscillating noise when the refrigerators are running. suppose that 10 of these refrigerators have a defective compressor and the other 4 have less serious problems. if the refrigerators are examined in random order, let x be the number among the first 9 examined that have a defective compressor. (a) calculate p(x = 7) and p(x ≤ 7). (round your answers to four decimal places.)