It should be for 5 hours if $30 is what they started with
B: ray
Rays are a linear formation that start at a point and continue forever in a direction. The photo shows a point on one end, and an arrow on the other indicating that it starts at the point and continues forever past the arrow.
2a^3-4a^2+5a+3
Explanation:
For standard form you always start with the one that has the biggest exponent to the least one
C^2-a^2=b^2 b^2=81-36=45 x^2/36-y^2/45=1?