If signs are different you subtract. So 2.5- -1.25 equals 1.25 and keep the sign of the biggest number
Hi there!
To find the percent of change we can use the following formula:

Let's fill in our data

Subtract

Divide

And finally multiply

Hence, the percent of change is negative 20%.
~ Hope this helps you!
Answer:
the answer is 32
Step-by-step explanation:
3/8=0.375
0.375 x 12 =32
Answer:
150°
Step-by-step explanation:
number of terms=12
sum of exterior angles=360
one exterior angle=360/12=30
interior angle=180-30=150°