Determine whether (1,1) and (-1,4) are solutions to 2x+5y<7

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

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

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account