1 * 8 = ?

(not really a math problem just bored and doing work)

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

If julia has a value of x5.4 that is equivalent to x10.9 true or false. explain

Apopulation of 1500 insects grows exponentially, by a factor of 3 every week. select all equations that represent or approximate the population, p, as a function of time in days, t, since the time it was 1500.