Use the substitution method to solve the system of equations. Choose the
correct ordered pair.
x + y = 3
y= 9
A. (-6,9)
B. (12,9)
C. (-12,9)
D. (6,9)

Pelle's sister is three years older than pelle the father is 5 times as old as pelle the mother was 28 when the sister was born altogether they are 98 years old how old is pelle?

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0