I am going to assume 2.5x is really 25x (typo).
First formulate the equality

Now two results emerge.
.
Hope this helps.
I know this hold up I’ve done this in yr 7
Answer:
48
Step-by-step explanation:
pq
substitute values
(8)(6)
8*6 = 48
Answer:
2
Step-by-step explanation:
3v+4=8v-6
4=5v-6
5v=10
v=2
This is the formula c=a2+b2