A company sells trinkets and doodads. A small grab bag contains 2 trinkets and 1 doodad and sells for \( \$ 7 \). A large grab bag contains 5 trinkets 3 doodads and sells for \( \$ 19 \). How much do trinkets and doodads sell for individually? (Assume no mark-up on the grab bags.) Trinkets cost \( \$ 3 \) and doodads cost \( \$ 2 \).

Calcula. \( \begin{array}{ll}\text { a) }(-4) \cdot(-5) \cdot(-3) & \text { b) }(-60) \div(-10) \\ \text { c) } 96 \div(-8) & \text { d) }(-8) \cdot 3 \cdot(-2)\end{array} \)

A ferris wheel is 45 meters in diameter and boarded from a platform that is 2 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 4 minutes. The function \( h=f(t) \) gives your height in meters above the ground \( t \) minutes after the wheel begins to turn. What is the Amplitude? What is the Midline? \( y=\square \) meters What is the Period? How High are you off of the ground after 2 minutes?

Qasim has a bag that contains pineapple chews, lemon chews, and lime chews. He performs an experiment. Qasim randon removes a chew from the bag, records the result, and returns the chew to the bag. Qasim performs the experiment 52 time The results are shown below: A pineapple chew was selected 33 times. A lemon chew was selected 9 times. A lime chew was selected 10 times. Based on these results, express the probability that the next chew Qasim removes from the bag will be lemon chew as a percht the nearest whole number.

47. En una tienda de lubricantes el precio de una lata de aceite de 20 litros es de \( \$ 310.00 \) y el costo del flete de \( \$ 30.00 \). Si x es el número de latas que se compran, ¿cuál de las siguientes funciones es la apropiada para hacer el cobro?

Realizar las operaciones indicadas, dadas las siguientes matrices, con el procedimiento detallado. \[ A=\left[\begin{array}{ccc}1 & 3 & -1 \\ 2 & 0 & 4 \\ 1 & 2 & 5\end{array}\right] \]