Given aabc. m la= 39°
mlb=104°
ac= 20cm
mlc=
ab =
cb -

∠C = 37° ,

AB = 26.54 cm ,

BC= 33.27 cm

Step-by-step explanation:

Given that in triangle ABC

∠A = 39°                       AC = 20 cm

∠B = 104°

∵ sum of all the three angles of triangle = 180°

So,    ∠C = 180° - ( ∠A + ∠B)

         ∠C = 180° - (39° + 104°)

         ∠C = 37°

Now Tan 37° =

    Or, AB =  

    So, AB = 26.54 cm

Again, Sin 37° =

       So, BC =

       Or, BC =

        ∴   BC= 33.27 cm

Hence ∠C = 37° , AB = 26.54 cm , BC= 33.27 cm       Answer

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt