3. The equation x^2 + n = 0
has at least one real number solution when n > 0
a) always
b) sometimes
c) never

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.