Answer:
12:27
Step-by-step explanation:
27 - 15 = 12
There are 12 girls and 15 boys.
12:27 is the ratio of girls to the total amount of students.
4 : 9
Girls = 27 - 15 = 12
=> The ratio of girls to total students will be: 12 : 27 or 4 : 9
162.5
20 bags
1400/70
1. n + 34
2. n - 34
3. n × 34
1. 34 more than a number n + 34
2. a number decreased by 34 n - 34
3. the product of a number and 34 n × 34