Answer:
The number of students increase from 1997 to 1998 by 100 %.
Step-by-step explanation:
Let x be the number of students in the year 1996.
According to the question,
The number of students on 1997 = 2x
Also, the number of students on 1998 = 4x
Thus, the percentage increase in the number of students from 1997 to 1998
B. It is a composite number.
143 can be divided by 11 and 13 making it a composite number.
the unknown number is -13
4n -7 = -59
4n = -59 +7
n= -52 /4
n = -13
thus full sauce of pot is deducted from the half pot used for preparing tomato sauce.