Find the sum or difference. Write your answer in simplest form. 4. 5/8 + 2/5
5. 9/10 - 1/3
6. 5/7 - 1/4
7. 5/7-1/4
8.7/8+1/3
9. 5/6 + 2/5

HELP PLEAS

Question: what is the value of x 4x-2= (-7) +5x. it would be greatly appreciated if someone could actually explain to me step by step

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?

Im literally having a mental breakdown