98 brainliest points to anyone who can with (01.05 mc)the temperature of a city changed by −15 degrees celsius over a 5-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)

y=the temperature right now+ 15/5x

15/6x means how much temperature has increased a week and x is the number of weeks

5x = -15

5 represents time in weeks

x represents the quantity I am trying to find

-15 is my result after a 5 week period of temperature decline at a rate of x.

Now when we solve for x, we get x = -3.

Therefore the rate of which the temperature has dropped has been identified at -3 degrees per week of temperature decline.

Can you let me know if this helps, thx

what is the original number? you forgot to add it.