Answer:
k = 324
Step-by-step explanation:
Y varies inversely as x
Let k be the constant of variation
Y = k/ x
Y= 36 and x= 9
Substitute the value of Y and x
36 = k/9
Make k the subject of the formula
k= 36*9
k =324
Answer: the answer IS G. MARK BRAILIEST PLS
Step-by-step explanation:
Multiply 3 with 7.
3 * 7 = 21
The value of the gift card changed by -$21 dollars.