Dudley is biking. He wants to cover 40 miles. If he travels 30 miles every 2 hours, what is the equation of a line that models y, the number of miles he has left to travel, after biking x hours?

000) Sales (
000) 1068 4489 1026 5611 767 3290 885 4113 1156 4883 1146 54
Which explicit formula is equivalent to a1 = 1, an= 4an-1? A. an = 1(4)^n-1 B. an = 4(4)^n-1 C. an = 4(1)^n–1 D. an = 1 + (n - 1)4
(b) In a continuous series the average weight of some students is 75 kg and the sum of the weights is 6000 kg. Find the number of students.​
Aaron Co. needs a machine for a 5-year project. It can either (1) buy a machine without borrowing for $500,000 or (2) enter into a 5-year operating lease for an