What is the answer for 4/7 + 5/7 = by simplify

The measure of an angle is 117°. what is the measure of a supplementary 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

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)