30. The two quantities are in proportion. Find the missing value.
x/31 : 9

279

Step-by-step explanation:

x/31:9 => x/31 = 9/1

                x = 31*9

                  x = 279

the distance from any point on the parabola to the focus is the exact same as the distance from that point to the directrix.

if you could provide answer choices that might allow me to answer the question easier if my above answer isn't an option! (:

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16