If the interest rate for a 15-year fixed rate mortgage is 5.00%, then the corresponding 30-year fixed rate is 6.39%. if the 15-year rate decreases to 4.00%, then the 30-year rate decreases to 4.99%.

a. assume that the relationship between the 15-year fixed rate (%) and the 30-year fixed rate (%) is linear. find the equation of the line that describes this relationship. write your answer in slope-intercept form. let x be the 15-year fixed rate and the y be the 30-year fixed rate.

b. use your equation from part a to estimate the 30-year fixed rate if the 15-year fixed rate is 4.5%.

Could you ask yoir teacher for help next class period by any chance?

it is b)

hope this : )

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %