In your opinion what concepts of math were used in this entire pandemic situation?? Useless answers will be blocked.

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay