Asurvey of the students in lance’s school found that 58% of the respondents want the school year lengthened, while 42% think it should remain the same. the margin of error of the survey is ±10%.
according to the survey data, at least
% of students want the duration of the school year to remain unchanged, and at least
% want the school year to be lengthened.

According to the survey data:

at least  32% of students want the duration of the school year to remain unchanged, and

at least  48% want the school year to be lengthened.

Margin of error--

The margin of error is the small amount that leads to the miscalculation of some value.

We are given that:

The margin of error of the survey is ±10%.

  Hence, due to the margin of error the percent of students who want school year to be lengthened lie between:

              (58-10)% to  (58+10)%

               i.e. 48% to 68%.

Similarly,

Hence, due to the margin of error the percent of students who want school year to remain same lie between:

              (42-10)% to  (42+10)%

               i.e. 32% to 52%.

7

step-by-step explanation:

i'm assuming you need to figure out how many campers go into each tent.

i got the answer by:

24+4=28

28/4=7  

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional