Which of the following uses a variable to represent a person, place, or thing
that is unknown?
a. a c-sharp on the piano
b. apartment 12a
c. a b+ grade
d. mr. x

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project

Find the solution(s) to x^2-14+49=0