Let p (n) be the statement that a postage of n cents can be formed using just 4-cent stamps and 7-cent stamps. the parts of this exercise outline a strong induction proof that p(n) is true for n 18.
a) show statements p (18), h19), h20), and f(21) are true, completing the basis step of the proof.
b) what is the inductive hypothesis of the proof?
c) what do you need to prove in the inductive step?
d) complete the inductive step for k 21.
e) explain why these steps show that this statement is true whenever n 18.

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!

can you make your screen more see able?

then i might be able to .

493 would be the correct answer

step-by-step explanation:

hi there!

the answer is: 2 and -2

step-by-step explanation:

case 1: an absolute value of positive number will still be a positive number

so absolute value of 2 is 2

case 2: an absolute value of negative number will be positive number so absolute value of -2 is 2