Let c and d be real numbers.
a. if c = 42 + d is true, then which is greater: c or d, or are you not able to tell? explain how you
know your choice is correct.
b. if c = 42 - d is true, then which is greater: c or d, or are you not able to tell? explain how you
know your choice is correct.

Step-by-step explanation:

Given

c & d are real number

(a) c=42+d

c-d=42

Difference of two no is positive i.e. first no is greater than second

c>d

(b)c=42-d

c+d=42

sum of two number is 42 so we cannot tell which one is bigger

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.

- both graphs increase on their domain.

- the graphs of both functions have the same x-intercept.

- neither graph has a y-intercept.