K/5.6+ 41.5 = 10.8
The solution is k=

k = - 171.92

Step-by-step explanation:

+ 41.5 = 10.8 ( subtract 41.5 from both sides )

= - 30.7 ( multiply both sides by 5.6 to clear the fraction )

k = - 171.92

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.