To rent a certain meeting room, a college charges a reservation fee of 15 and an additional fee of 5 per hour. the chemistry club wants to spend less than 45 on renting the room. what are the possible numbers of hours the chemistry club could rent the meeting room?

The possible numbers the chemistry club could rent the room is less than 6 hours(t<6)

Step-by-step explanation:

Reservation fee = 15

Additional fee of 5 per hour

If the chemistry club wants to spend less than 45 on renting the room, let the possible number of hours be t.

t = time

15 + 5t < 45

5t < 45 - 15

5t < 30

t < 30/5

t < 6 hours

15.5

step-by-step explanation:

5

∑

n = 1

substitute n = 1, 2, 3, 4, 5 and sum the terms

= + + + 2² + 2³

= 0.5 + 1 + 2 + 4 + 8

= 15.5

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13