What kind of symmetry does Equation x^2 + (y+2)^2 = 4 have?(y-axis, x-axis, or origin)

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Asinusoidal function whose frequency is 1/6pi