A bus was purchased for $90,000. Assuming the bus depreciates at a rate of $7,500 per year for the first 10 years, write the value v of the bus as a
function of time 1.

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.