Remember that

try and simpliy each first
4y/14=(2/2)(2y/7)=2y/7
so 2x/7 divided by 2y/7

=
It is 4 1/2. If you keep the first number switch the division symbol into a multiplication sign and find the reciprocal of the last number you would get this.
Lucy I think you r welcome
10 pizzas
5 pizzas ordered at one time
25/5=5
5*2=10
Answer:
625 cm3
Step-by-step explanation:
Formula V1 * P1 = V2 * P2
V1 = 450 cm3
P1 = 125 kPa
P2 = 90 kPa
V2 = ?
V2 = (V1 * P1) / P2
V2 = (450 cm3 * 125 kPa) / 90 kPa = 625 cm3