Zaire is making sand art her mom. she bought a rectangular vase that is 2.5 inches long, 3 inches wide, and 6 inches tall. colored sand is sold for $0.50 per square inch. how much will she spend on sand to fill the jar

$22.50

Step-by-step explanation:

I think the unit of the sand sold is actually in cubic inches and not square inches.

V = L*B*H

V = 2.5 * 3 * 6

V = 45 in³

If 1 in³ = $0.50

    45 = x

x = 45 * $0.50

x = $22.50

on friday there were 15 birds

-2

7 - 9 = -2

reversed:

-2 + 9 = 7