Answer:1624.22
Explanation:
Width
=
Width=
2
3
4
in
=
2.75
in
2
4
3
in=2.75 in
Convert fraction to decimal
Height
=
Height=
2
1
4
in
=
2.25
in
2
4
1
in=2.25 in
Convert fraction to decimal
Volume
=
Volume=
�
�
ℎ
lwh
Volume of rectangular prism
=
=
7
⋅
2.75
⋅
2.25
7⋅2.75⋅2.25
Substitute
=
=
43.3125
in
3
43.3125 in
3
Cost per brick
=
Cost per brick=
43.3125
in
3
1
⋅
$
0.05
1
in
3
1
43.3125in
3
⋅
1in
3
$0.05
=
=
43.3125
in
3
1
⋅
$
0.05
1
in
3
1
43.3125
in
3
⋅
1
in
3
$
0.05
=
=
$
(
43.3125
⋅
0.05
)
$(43.3125⋅0.05)
=
=
$
2.165625
$2.165625
Careful not to round too soon
Total cost
=
Total cost=
750
⋅
$
2.165625
750⋅$2.165625
=
=
$
1624.21875
$1624.21875
≈
≈
$
1624.22
$1624.22
Round to the nearest cent