Answer:
$18.45
Step-by-step explanation:
145 + 450 + 350 + 900 =
1.45 + 4.50 + 3.50 + 9 = 18.45
1.45 in nickels
4.5 in dimes
3.5 in quarters
9 in fifty cent piece
now you add them
1.45+4.5+3.5+9=
x^3 + 3x^2 + 4x + 12
C.
D) obtuse