4. Solve each of the systems of equations below. Write your solution as a coordinate point. Show your work. a. 2x-y=4 b. y=-x-2
1/2x+y=1 2x+3y=-9

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation: