Answer:
Teachers to Students: 1:9, 1 to 19, 1/19
Students to teachers: 19:1, 19 to 1, 19/1
(If this is wrong the answers might be different for you but this is what I got an I was right)
Answer: 18+54
Step-by-step explanation:
6*3=18 and 6*9=54
Answer:
$1.81
Step-by-step explanation:
10 - 8.19 = 1.81
Y X
80 32
100 x'
80x' = 100*32
80x' = 3200
x' = 3200/80
x' = 320/8
x' = 40