Mr. smith built a rectangular-shaped sandbox for his children, measuring 4 feet by 4 feet by 6 inches. sand has a density of approximately 100 pounds per cubic foot and is sold in 50-pound bags for $3.50 each. how much will it cost mr. smith to completely fill the sandbox?

$56.

Step-by-step explanation:

The volume of the box = 4 * 4 * 1/2 = 8 cu ft.

So the weight of sand required = 100* 8 = 800 lbs.

Therefore he requires 800 / 50 = 16 bags of sand.

The  cost will be 16 * 3.50

= $56

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !