To rent a certain meeting room, a college charges a reservation fee of$33 and an additional fee of $8.60 per hour. The history club wants to spend less than $67.40 on renting the meeting room.

They will spend less ($41.6)

Step-by-step explanation:

That is the "final" answer or i don't know if some variables are missing...

In case you need the difference between what they want to spend and what they will spend, its ($25.8)

4

step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.