PLS HELP IT'S VERY IMPORTANT FOR ME 100POINTNO NOT SMART ANSWER AND SPAWN PLSSS Will mark as Brainliest

Solve for y to determine if the equations are direct, inverse, or neither.
2y=5x-6
x/9-4/y
x=5
xy=30
4y=x
x+2y=14
y=-2
y=3x-1
y=x
10=y/x
x=y/-7
y=-2/5x
2x+y=0
y=-2
2y=-3x
x+y=9
y=-2/5x
y=6/x
y=-48/x
xy=-18

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u. s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u. s. dollars for every 100 euros. b. gabriella averages 100 u. s. dollars for every 25 euros. c. gabriella can exchange 75 u. s. dollars for 100 euros. d. gabriella can exchange 100 u. s. dollars for 75 euros.