Whoever answers this right ill mark brainliest

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

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