Relevance Best Answer: <span>Something is wrong with the question.
$78 / 612 hours ≈ $0.13 per hour (in other words, less than 13 *cents* per hour).
To figure the hourly rate, take the total pay and divide by the hours.
For example, if it was $78 for *6* hours, it would be:
78 / 6 = $13 per hour.
Or more likely, it was $78 for *6½* hours:
78 / 6½
= 78 / 13/2
= 78 x 2/13
= 78/13 x 2
= 6 x 2
= $12 per hour</span>
The first one simplifies to 81a^4b
Sorry, I cannot solve the second one without placement of parentheses on the exponents
For the first one, 2/5 is the constant rate of proportionality because you are using it in a y=kx equation.
If you are asking what the missing number is all you have to do is multiply -1.5 and 21 the answer -31.5.
