Iwill upvote if u

which number sentence shows the associative property of addition? choose all that apply.

2(4 · 3x) = (2 · 4)(3x)

11z + 9p = 9p + 11z

7 + (8 + 6) = (7 + 8) + 6

(17 + 11) + 3 = 17 + (11 + 3)

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)

How many revolutions will a car wheel of diameter 28 in. make over a period of half an hour if the car is traveling at 60 mi/hr? the final answer is supposedly 21,609 but i have no idea how to get that, show work : )