Let →
a
=

and
→
b
=

.

Find
k
so that
→
a
and
→
b
will be orthogonal (form a 90 degree angle).

Margaret is purchasing a house for $210,000 with a 15 year fixed rate mortgage at 4.75% interest she has made a 5% down payment the house is valued at 205,000 and the local tax rate is 3.5% homeowners insurance 600 per year what are her total monthly payment