X^12y^-13x^-5y^ 4 is equivalent to x^m y^n

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

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

Find the arc length of the semicircle. 7the grade