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indicate which property is illustrated in step 2. step 1 4 • 8 • 10 • 1 = (4 • 8) • (10 • 1) step 2 = (8 • 4) • (1 • 10) step 3 = 32 • (1 • 10) step 4 = 32 • 10
a. associative property of addition
b. commutative property of multiplication
c. associative property of multiplication
d. commutative property of addition

Which system of linear inequalities is represented by the graph? x-3y > 6 and y? 2x + 4 x + 3y > 6 and y? 2x - 4 x - 3y > 6 and y? 2 - 4 x + 3y > 6 and y > 2x + 4 no be 2 -1.1 1 2 3 4 5 submit save and exit next mark this and retum be

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?