Aschool science club conducts a car wash to raise money. the club spends $12 on supplies and charges $5 per car. after the car wash, the club has a profit of $113. how many cars did the members of the science club wash?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell

What are the triple angle formulas? is it related to double angle identities?