1. Is the 1st problem y-x or y+x?
2, 2 not equal to 4 when subtracting
4,10 not equal to 4
6,15 not equal to 4
2. x, y. y-x=0
2, 5 x=2/5y 2=(2/5×5/1) 2=2
2-2=0
looking at the 3rd equation
the value of
x=2/5y. 5/2x=y or 2.5x=y
you need to divide the 2/5 to both sides. 2/5 becomes 5/2 or 2.5x.
Disjunction is a logical operation which forms compound propositions which are false only if all statements (disjuncts) are false. If at least on statement is true the result of disjunction is true. For three statements A, B and C the following table shows how it works (1 means true, 0 means false):

33 and one third of 16 is 48, i think.....
Answer:
Step-by-step explanation:
Take the log of both sides:
log(2) = t*log 1.015, so that:
log(2)
t = --------------- = 46.6 compounding periods, which is 46.6/4, or 11.6 years
log 1.015
Can't write this exponential equation as a logarithm; instead, CAN write it in logarithmic form.
1) x= 14 y=37
2)x= 50.5 y=22
hope this is correct