Answer:
60
Step-by-step explanation:
u find 75% of 80 or 75% × 80
41+0.10x = 31+0.15x
10 +0.10x=0.15x
10=0.05x
x=10/.05
x= 200 text messages
check 200*0.10 = 20 +41 =61
200*0.15 = 30+31 = 61
they equal each other so number of texts is 200
The answer is 20 degrees
(We know that the angle is 40 because opposite angles are the same)
I hope this helps! :)