Which angles are vertical angles in the figure shown? Select two answers.
A. 1 and 2
B. 2 and 3
c. 5 and 8
D. 4 and 5
E. 7 and 8

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Opposite angles in a parrellelogram are

It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples