Rhoads earned $324.65 delivering newspapers. she promised her sister 0.2 of her earnings for her. how much does rhoads owe her sister? do i have to subtract? ? if not me solve plz

In math problems, "of" usually means "multiplied by."

(owed to sister) = 0.2*(earnings)
.. = 0.2*$324.65
.. = $64.93

Rhoads owes her sister $64.93.

Use photo math it

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.