**Answer:**

**40 minutes.**

**Step-by-step explanation:**

**time spent on the thread mill as a function of d(day) = t(d)**

**= 30 +2(d-1) minutes**

[where d represents day number]

(**when d is 1 the time spent should be 30 **

**so substitute d=1 and check it will be 30 only.**

**on first day he will spend 30 minutes so, I added 30 .**

**and on every additional day( these additional days are excluding first day), he will increase the time by 2 minutes.so, I added 2(d-1) to initial 30 minutes)**

- so, T(6), the minutes he will spend on the treadmill on day 6=

=30+2(6-1)

=30+2(5)

=30+10

=40 minutes

48 inches = 4 feet, therefore 4:2, but simplified it is B. 2:1

10 1/4 / 151 3/16 = 4/59

Have a great day :)

**Answer:**

**'b' and 'c' = 119 degrees**

**Step-by-step explanation:**

**Given that this is a basic intersection of straight lines, we can assume 'b' and 'c' are equal as well as the given angle and it's opposite. Given 61 degrees and and two straight lines we can just take 180 degrees - 61 degrees and we get 119 degrees, I solved for 'b', but this will give the same answer for 'c', as 'b' and 'c' are equal.**

**Answer:**

$20,232.75

**Step-by-step explanation:**

I hope it helped