Answer:
268
Step-by-step explanation:
please give brainliest
Answer:
what are the choices?
Step-by-step explanation:
Supplementary angle must add up to 180 so the supplement will be 108 degrees. 180-72=108.
Get them to have a common denominator so you can add them
(1/3)×2= 2/6 and (1/2)×3= 3/6
Add them together
(2/6)+ (3/6)= 5/6
So 5/6 of the class planted either marigolds or tulips and 1/6 of the class planted neither
You're starting at 400. Each time you're cutting in half.
So the common ratio is 1/2 which means the equation is

which is in the geometric sequence format. So the answer is choice D