I believe this is the answer, im so sorry if im wrong
8 dollars is discount
100-20=80 so
8 dollars =80%
1 dollar=20%
80+20=100
8 + 1 = 9
original price=$9
it is the measurement of the positions, motions, and magnitudes of stars.
Answer:
Ancient Greeks
Beginning in the 6th century BC with the Pythagoreans, with Greek mathematics the Ancient Greeks began a systematic study of mathematics as a subject in its own right. Around 300 BC, Euclid introduced the axiomatic method still used in mathematics today, consisting of definition, axiom, theorem, and proof.
Step-by-step explanation:
She started with 81 baseball cards.
Looks like you are missing a fraction after the 'If'
