En la tienda de mascotas una pecera tiene 50 peces rojos. 25 peces anjles 80 peces dorados.

The Coffee Counter charges \( \$ 10 \) per pound for Kenyan French Roast coffee and \( \$ 9 \) per pound for Sumatran coffee. How much of each type should be used to make a 20 pound blend that sells for \( \$ 9.65 \) per pound? The Coffee Counter should mix \( \square \) pounds of Kenyan Roast coffee and pounds of Sumatran coffee to make 20 pounds of a blend that sells for \( \$ 9.65 \) per pound.

a. \( (+4) \times(-3) \square \)

A presidential candidate plans to begin her campaign by visiting the capitals in 4 of 45 states. What is the probability that she selects the route of four specific capitals? P (she selects the route of four specific capitals) (Type an integer or a simplified fraction.)

Decide if it would be more appropriate to make an estimate or to do an exact calculation in each situation. Give your answer and specify if the number represents an estimate or a calculation. You are calculating a tip on a restaurant bill. The service was good, so you would like to tip about \( 20 \% \) of \( \$ 43 \). Part A: Is the answer an estimate or calculation? Answer: Calculate Part B: How much do you plan to tip? Answer: \( \$ \)

e) \( \left(\frac{-9}{3}\right)(-7) \) g) \( \left(\frac{24}{9}\right)\left(\frac{-56}{48}\right)= \) \( 1\left(\frac{-21}{-7}\right)\left(\frac{-9}{3}\right) \)