The scale on a 1:50 000 Ordnance Survey map indicates that 2 cm on the map = 1 km on the ground.
How many centimetres would 1km be represented by on a 1:25 000 scale map?

?cm

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext

Asap! i'm not good math and i'm lost.