Alla is meeting to friends at the amusement pack The three of them want to go on 7 hides Each ride costs blickets. The tickets are sold in packs of 20 for $5 or individually for uc eoch 1 How many tickets will they need? 2 What is the least expensive way to wekkets without having any tickets left over? How much will the tickets. cost?​

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.