There are 60 students in the speech contest. Yesterday, 2/3 of them gave their speeches. Today, 1/4 of the remaining students gave their speeches. How many students still haven’t given their speeches?

15

Step-by-step explanation:

60 x 2/3 = 120/3 which is 40 students that gave their speech the first day

Second day there are 20 students left to speak.

20 x 1/4 = 20/4 which is 5 students that gave their speech.

Now there are 15 students left to give their speech

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: