The equation y=150(1.09)t models the value of a autographed baseball in dollars (y) in terms of the number of years (t) after it was signed. What is the initial value of the painting? A: $0
B: $1.09
C: $150
D: $159

State one method by which you can recognize a perfect square trinomial.

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?

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?