Sean surveys his classmates on what type of pet they have. He finds that thirty have cats and 25 have dogs. Sixteen have both cats and dogs, but no gerbils. Five have only gerbils, while four have both dogs and gerbils and two have both cats and gerbils. Only one student has all three pets. Of 50 students surveyed, how many have no pets? a.5
b.0
c.7
d.12

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

what are you doing do you need examples of variable questions?

step-by-step explanation:

5a-1=9               bring the one over the =

5a=10                     divide by your variable

a=2

brainliest? ?

here try this one

3a-24=0

the answer i believe is 27 units.

step-by-step explanation: