I'm doing an online course to study for a test. can someone explain how to do this? : (
sorry if the picture does not show, just message me saying that it is not there.

(p. s. do not answer saying "idk." i am giving 99 points away.)

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

In the rectangle below ac=30 units what is de

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.