Alex took out a 7/1 variable-rate mortgage for $140,000. the interest rate for the first period was fixed at 5.25%, and the loan was amortized over 30 years. at the end of the initial loan period, the interest rate was 6.75%, plus a 1.5% margin. what was alex's monthly mortgage payment during the initial fixed-rate period?

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

      2

  2 is to go somewhat to the top right of a because it is squared    

v= a h/3