Acell phone plan costs $30 per month for unlimited calling plus $0.15 per text message.

a.) write a linear model that represents the monthly cost of this cell phone plan if the user sends t text messages.

b.) if you send 200 text messages, how much would you pay according to this cell phone plan?

How can you check that you have correctly converted frequencies to relative frequencies?

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.

Abilliard ball is struck by a cue. it travels 1 0 0 cm 100cm before ricocheting off a rail and traveling another 1 2 0 cm 120cm into a corner pocket. the angle between the path as the ball approaches the rail and the path after it strikes the rail is 4 5 ∘ 45 ∘ . how far is the corner pocket from where the cue initially struck the ball? do not round during your calculations. round your final answer to the nearest centimeter.