5. The table below shows the number of dolls in Erica's collection as she gets older. y 10 9 8 7 6 Dolls in Collection 1 0 1 2 3 4 5 6 7 8 Erica's Age (years) Which equation models the relationship between Erica's age, x, and the number of dolls she has, y?

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?