The temperature of a city changed by -20 degrees Celsius over a 4-week period. The temperature changed by the same amount each week. Expression A: Write an expression to show the average change in the temperature of the city each week. Part B: Simplify the expression an explain, using words, what your answer means.

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5

i would you but i don't under stand the qustion

step-by-step explanation: