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

can you make your screen more see able?

then i might be able to .

answer:   expression= p+p*d%

price reduction + sale price = $625

sale price: $p+$p*d%

where d% is the percentage of discount

step-by-step explanation:

original price = p

price went down by $150 price reduction $p*d%

sale price= $ 475

therefore the price before sale is: $625

and the expression that shows the price before sale is: p+p*d%