Solve for x by cross multiplying then isolating the variable:

cross multiply
15x=90 Isolate the variable
x=6
Solve for y by cross multiplying then isolating the variable:

cross multiply
9y=90 Isolate the variable
y=10
Answer: you can use desmos and type it in just like that a graph will pop up. Go to google and type in desmos
Step-by-step explanation:
Answer:
Can you show the drop down choices?
Answer:
x=-20
Step-by-step explanation:
x+9=-11
Subtract 9 from both sides. (-11-9=-20)
x=-20
I think the answer is a = 4.5
81 ÷ 6 ÷ 3 = 4.5
I hope this helps, have a wonderful day!