3 1/3 x 3 =??
Not quite understanding

Which represents the inverse of the function f(x) = 4x? h(x) = x + 4 h(x) = x – 4 h(x) = x h(x) = x

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

The relative growth rate for a certain type of fungi is 60% per hour.a small culture has formed and in just 6 hours the count shows to be 20,273 fungi in the culture.what is the initial number of fungi in the culture?