Greg's ceiling fan rotates 30 degrees and then stops. how many more time does it need to rotate to make a full rotation

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

Point a (7,3) is translated to a'(16,-9). which rule describes the translation?

Michael and imani go out to eat for lunch if their food and beverages cost 25.30 and there is an 8% meals tax how much is the bill