Awireless carrier offers the following plans that a person is considering. the family plan: $70 monthly fee, unlimited talk and text on up to 5 lines, and data charges of $50 for each device for up to 2 gb of data per device. the mobile share plan: $90 monthly fee for up to 10 devices, unlimited talk and text for all the lines, and data charges of $35 for each device up to a shared total of 10 gb of data. find the model of the total cost of the family plan in dollars. use p for the number of devices that need data plans as part of their cost.

Write the rational number in lowest terms 99/-15

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec