Answer:
this is correct
Step-by-step explanation:
f continous in x=30 means that it should be the same value for 1.25 x 30 and 1.10 x 30 + k so k =4.5
Look at the picture.

For XY and ZX use the Pythagorean theorem.


The perimetero fo XYZ:

I do not answer I mean College and I passed it
Step-by-step explanation:
2/5×7500
2×1500
3000
RM=3000