D. among those surveyed, 1940 were called by landline and 1407 were called by cell phone. what percentage of the survey subjects were called by cell phonecell phone?

Use the graph of the sine function y=2sinθ shown below

If you could answer these your a life saver

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)