8,10,13,15,18,23,26,30
is this what you wanted?
Answer:
5*8+14=54
Step-by-step explanation:
5*x+14= 54
so
54-14= 40
40/5=8
so x=8
There are
4 triangles that form. See the attached image.
Answer:
$43.2
Step-by-step explanation:
32.4÷15=2.16
2.16×20=43.2