The equation y=13.2x+9.8 estimates the amount that businesses will​ spend, in billions of​ dollars, on a certain business​ technology, where x is the number of years after 2003. For what years will the spending be more than ​$89 ​billion?

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.