Answer:
I think that is the answer to this math work 5 × 3= $15 7 × $4.20=$29.40 All together it will be $44.40
Its an increasing number so, if your number is 1 billion its 10^6
The constant of proportionality is 13
Do 16-9 which equals 7, then (7)^11=77 1.=77
this one add 3+4 which equals 7 then do 7^2= 49 then 4x49=196 2.=196