when asked to factor the trinomial x^2-18x+81 a student gives the answer (x-9 (x+9) which of the following statements is true

What is the percent change if 15 is increased to 21?

An item costs $36. The price is increased by $15, then reduced by $15. Find the percent of increase and the percent of decrease. A) The percent of increase is about 42%, whereas the percent of decrease is about 29%.

A rental company charges customers an initial charge plus a daily charge to rent cars. The initial charge is $30 and the daily charge is $25. Write a function models the car rental company's situation.

Morgan obtains a loan for $5,700. How much money (in dollars) does she actually receive assuming a loan fee of 0.95%? (Enter an exact number.)

Besides the elderly and retired, who can benefit from Social Security?

What is the length of the side opposite angle B? 3 units 4 units 5 units 6 units

Choose all of the equations that are equivalent to 8k = 20. A. 8k - 4 = 20 + 4 B. 8k : 4 = 20 : 4 C. 8k * 3 = 20 * 3 D. 8k + 10 = 20 + 10 E. 8k * 5 = 20 : 5

If inflation is 4.44% per year and a car costs $32,600 what would have it been 2 years ago?

Which number can be removed from the following list of data so that the median will remain the same? 80, 32, 55, 50, 46, 71, 60 A. 32 B. 55 C. 60 D. 80

Historically, the percentage of US residents who support stricter gun control laws has been 52%. A recent Gallup Poll of 1011 people showed 495 in favor of stricter gun control laws. Assume the poll was given to a random sample of people.