The equation y = 0.25x + 50 gives the cost y of renting a car if the car is driven x miles according to the model, what is the best estimate of the cost for renting a car if you plan to drive 250 miles? 50$ 62.50$ 112.50$ 300$

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

In a small section of a stadium there are 40 spectators watching a game between the cook islands and fiji. they all support at least one of the two teams. 25 spectators support the cook islands and 16 of these support both teams. how many support only fiji?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?