In a class of 40 students, 15 watched television last night, 32 did homework, 9 ate pizza, 11 watched television and did homework, 7 watched television and ate
pizza, 4 ate pizza and did homework and 3 did all three (Note: When we say
11 students watched television and did homework, some of those students may
have also eaten pizza. Likewise, for the other numbers.)
How many students did none of these activities?

answer: 20

step-by-step explanation:

0.84 dang lotta people are looking for this lol or if you round up its 1 but the overall answer to that is 0.84

step-by-step explanation:

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

0.32

step-by-step explanation:

2.24/7