For each curve below, find the values of x for which the curve is increasing i. y=x^2 -4x ii. y=x^2 -2x-3 iii. y=12+4x-x^2 iv. y=x^3 +3x^2-5 v. y=x^3-6x^2-15x+8 vi. y=24x-3x^2-x^3

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

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

$649.60

step-by-step explanation:

570, the answer is 570, hope it