50 people consume an average of 110 kg of rice in a week. if 20 more people join this group, how many kilograms of rice will be needed for a week

How do you solve a question like this?

Plz a. s. a. p. the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

Does the point (1, sqrt 7) lie on circle shown.