9514 1404 393
Answer:
D. 210
Step-by-step explanation:
If b is the number of boys in the choir, the ratio of boys to girls is ...
b/150 = 7/5
b = 150(7/5) = 30(7) = 210
There are 210 boys in the choir.
Answer:
second and last one
Step-by-step explanation:
the less a negative the closer it is to zero which means it's closer to being a positive
Answer:
A. 
Step-by-step explanation:

I am joyous to assist you anytime.
My bad I didn't even read the directions haha, It is an 8 sided octogon and the sides are Irregular
Subtract the sum of the angles from 180 degrees to get the missing angle. For example if a triangle in a quadrilateral had the angles of 30 and 50 degrees, you would have a third angle equal to 100 degrees (180 - 80 = 100).