The temperature of a city changed by −20 degrees celsius over a 4-week period. the temperature changed by the same amount each week. part a: write an expression to show the average change in the temperature of the city each week. (5 points) part b: simplify the expression and explain, using words, what your answer means. (5 points)

Select all the correct statements. the amount in dollars an electrician charges in terms of the number of hours worked is represented by the function y = 22x + 42. from the function, identify all the phrases that hold true for the situation. the electrician charges an initial fee of $22 the y-variable represents the number of hours the electrician charges an initial fee of $42 the electrician charges $22 for every hour worked the x-variable represents the electricians charges in dollars the electrician charges $42 for every hour worked

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)