If the diameter of a circle is changed from 5 cm to 10 cm, how will the circumference change? A) increases by a factor of 2 B) decreases by a factor of 2 C) increases by a factor of 5 D) decreases by a factor of 5

Average acceleration: i have no idea how to do this.

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january. what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed. use 3.14 for π .

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation, and the determine the cost if he drove it70 miles. b) what would be the cost of a car rental if the car was driven 250 miles? show work