Answer:
(10,85)
Step-by-step explanation:
x=10
y=85
Answer:
see explanation
Step-by-step explanation:
since y is inversely proportional to x the equation relating them is
y =
← k is the constant of proportionality
to find k use the given condition when y = 7, x = 9
k = yx = 7 × 9 = 63
y =
← is the equation connecting them
when x = 21, then
y =
= 3
Answer: i think A is negative -2 and B is -19 hope this help im not a hundred percent sure if i got it wrong please let know.
Step-by-step explanation:
is simply the difference of both numbers of course, the price it was sold minus the price it was bought at.

It is a rational number in the form of a decimal fraction.