90% of the tickets sold at a school carnival were early-admission tickets. If the school sold 40 tickets in all, how many early-admission tickets did it sell?

Write a positive or negative number to represent each situation. a. you win 150 dollars in a contest b. a loss of 15 yards in a football game c. 75 feet below sea level d. 35 degrees above 0 f e. a debt of 24.75 dollars

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

Mr. zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years