3 1 point
You are looking at your power bill for the month, you pay 9 cents per kilowatt-hour. Running a 60 watt light bulb for 1 hour is.06 KWH, if you leave a light on all the time that has
2 light bulbs in it how much would that cost in a 30 day month? Answer in the form of $2.54 without the dollar sign.
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If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8

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.