13. according to the u. s. census bureau, of all
adults in the united states visited a zoo in 2007.
what percent of all adults in the united states
visited a zoo in 2007?

3/25 = 12

12% of all adults in the united states visited the zoo. I hope this helped!

Step-by-step explanation:

choice b

step-by-step explanation:

f(x) = 88x^2 -264x + 300

the line of symmetry of a parabola is defined by

h = -b/2a

where ax^2 +bx+c=0

so

h = - -264/ (2*88)

h = 3/2

so x = 1.5