Answer:
b = -8
Step-by-step explanation:
-2b + 9 =25
-9 = -9
-2b = 16
/-2 /-2
b = -8
Factor the numerator and factor the denominator.

Then you divide the numerator and the denominator by the common factor to reduce the fraction.
Answer:
27.1°C
Step-by-step explanation:
There’s no picture but look for the one that is 0,-1
x = 5/7 - 3/5 = 25/35 - 21/35 = 4/35