Please help me with this problem i really need help there are three screen shots

Step-by-step explanation:

side a=34 , side b=12  c=third side

a+b>c  12+34>25

b+c>a 12+25>34

a+c>b 34+25>12

12<3rd side<34

take example : c=25 which is greater than a and less than b

a=23, b=44 c=??

23<3rd side<44

take example : the same example with c=25

23+44>25

44+25>23

23+25>44

a=8 and b=13

8<3rdside<13

try it with side c=9 ( which is greater then 8 and less than 13)

sorry i dont know my friend

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21