What percent of a data set is represented in q1

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?

Somone me i want to know what 18 hours out of 24 hours in a fraction

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°