Answer:
B
Step-by-step explanation:
The teacher would have to grade 322 problems
14 (problems) x 23 (students)
Answer: 322
Answer:
y is also doubled.
Step-by-step explanation:
Direct proportionality between
and
means that

or
,
which indicates a linear relationship between
and
because they are related by a constant.
Therefore, if x is doubled, then the new value of
is 



The new value of
is 2 times the previous; therefore,
is doubled as
is doubled.
The awnse is 24a+24ax I hope this helps
1 x 4 = 4
4 x 5 = 20
20 x 6 = 120
120 x 7 = 840
So the answer is 840