Math pls,, will give brainiest reward! : )

Answer

16

Step by step

The triangles,PRS and PQT are similar.

PS:ST=15:3

=5:1

let PQ=x

PR:RQ

x+4:4

using the PS:ST ratio,

5:1=x+4:4

4×5=1(x+4)

20=x+4

collecting like terms

20-4=x

x=16.

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1