can take a picture of the problem and upload it
let hourly rate = r
then over 30 rate would be 1.4r
30r + 5(1.4r) = 436.60
30r + 7r = 436.60
37r = 436.60
r = 436.60/37 = 11.80
his hourly rate is $11.80
yes, the shape doesn't change and the orientation stays the same. the only thing that changes is the size.
Work: k^2+kf-2f^2
Factor
(K+2f)(k-f)
Answer: (k+2f)(k-f)
Check your work:
K+2f k-f
K^2+2kf-kf-2f^2
K^2+kf-2f^2
The answer is correct