I'm assuming that you meant h = 6 for choice B, in which case that would be correct.
Yuto wears a Japanese size 29.5.
By the problem,
Japanese size = UK size + 19
Or, 29.5 = UK size +19
Or, UK size = 29.5-19 = 10.5
Yuto’s shoe size would be 10.5 in the UK
19x³ + (14x + 4x³)=
You can assume that there is a 1 in front of the parentheses, so you can distribute the one to each term in the parentheses.
19x³ + 1(14x+4x³)=
19x³ + 14x + 4x³=
Then combine like terms to get 23x³ + 14x.
So 19x³ + 14x + 4x³= 23x³ + 14x
First, we can choose the seats for the four mathematicians. Then we seat the physicits, then the engineer. There are 4! ways to seat the mathematicians, then 3! ways to seat the physicists, then 1! ways to seat the engineer. But then we must divide by 8, because we can rotate the table, so there are 8!*4!*3!/8 = 725760 ways to seat everyone.
