The importance of placing a decimal point correctly in the quotient of a division problem is that if you misplace it, you'll get the wrong answer because let's say you have the number 0001. Well if you place the decimal at 00.01 that makes it 1 hundredths. Or, if you place it like 0.001 that makes it 1 thousandths. So placing it correctly may vary your answer.
In general, the intersection of two planes is the line passing through the points shared by the plane.
In this case, it would be line RW.
I believe you will sub. in 3 for t so h=-16(3)^2 + 60(3)+6. then you will just solve!
h=-16(9)+60(3)+6
h= -144 + 180 + 6
h= 42
so the answer to your question is c. 42 Feet
Hope this helps! :)
The percentage of Chang from 7.50 to 9.00 is 20
