19 pts guys! please help quick!

1. Given that ΔABC : ΔDEF, = , and the ratio of AB to DE is , which of the following could be the lengths of BC and EF?

2. Given that ΔABC : ΔDEF, AB/DE = BC/EF , and the ratio of AB to DE is 1/3, which of the following could be the lengths of BC and EF?

BC = 3; EF = 12

BC = 3; EF = 10

BC = 4; EF = 6

BC = 3; EF = 9

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?