Please help! 20 points available! Will give brainliest!

The solutions to
\[x^2 + 5x + 3 = 0\]are $p$ and $q,$ and the solutions to
\[x^2 + bx + c = 0\]are $p^2$ and $q^2.$
Find $b + c.$

If kn = 9 cm, mn = 21 cm, rs = 42 cm, and ps = 18 cm, what is the scale factor of figure klmn to figure pqrs?

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?