Determine if the given equations are functions or not functions.

Functions
Not Functions
x=3
x2 + y2 = 81
y=-x+11
y2 = -5x - 12
y = 2x2 - 6x +4
y=-7

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish