!URGENT! Ellis has a 30 oz. glass that is full (to the top) with a mixture of 40% cranberry juice
and 60% seltzer, and wants to change those percentages by spilling out some of the mixture and topping off the glass with seltzer. How much of the original mixture should be drainedand then replaced with seltzer in order to end up with a 30 oz. mixture that is 20% cranberry juice?

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.

first the equation needs to be simplified. so the equation would now look like:   52-24+11

then you multiply.

and when you multiply, you will get the answer of 39.