Answer:
150
Step-by-step explanation:
'x' = number of students out of 500 who selected math
18/60 = x/500
cross-multiply:
60x = 9000
x = 150
9. 168
10.
on the picture
if it's helpful ❤❤❤
THANK YOU.
? = 50°
? = 180° - 130° = 50°
