Amount of money Ann earned this week = Amount of money earned in 1hour × Number of Hours she worked
Amount of money Ann earned this week = (4x + 3) × (2x - 1)
= (4x + 3) (2x - 1)
{Draw lines like rainbows to let yourself know which numbers to multiply by}
= (4x × 2x) + [4x × (-1)] + (3 × 2x) + [3 × (-1)]
{Always remember to put in the negative signs if the number if negative}
= 6x^2 + (-4x) + 6x + (-3)
= 6x^2 - 4x + 6x - 3
{Simplify}
= 6x^2 + 2x - 3
Answer:
See Explanation
Explanation:
The question is incomplete as the value of s(t) is missing;
However, the following explanation will guide you;
I'll continue my explanation with the following assumption that:

Required
Determine the velocity at t = 8
To do this; first calculate s(t) by substituting 8 for t in 




Next, is to calculate the velocity by dividing s(t) by t where t = 8
i.e.

Substitute 8 for t

Substitute 72 for s(8)


<em>So: all you need to do is first calculate s(8), then divide the resulting value by 8 to get your result</em>
Ok happy to help any time
Answer:
what does it need to be about?
C. detonate the device in proximity to the asteroid to deflect it