Which is one way to check 102 ÷ 6 = 17

a. 105 ÷ 10 = 10.5

b. 100 ÷ 5 = 20

c. 102 ÷ 10 = 10.2

d. 105 ÷ 5 = 21

( its worth a lot of points)

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?

Which has the greater energy, light of wavelength 519 nm or light with a frequency of 5.42 x 10^8 sec^-1?

Jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later, she sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions, how much money did jody make?