2020-2021 The equation 2x2 + 2y? - 83 - 1²y + 16 = 0 defines a circle
Which of these shows a correct step for determining the center and radius of this circle? Choose all that are correct.

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate. true or false?

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.