16. (x-5)(x+4) = x^2-x-20
17. 2x>7 = x=3.5
18. -4
Answer:
does this help?
Step-by-step explanation:
PR=9+4+36−−−−−−−−√=7
PQ=36+9+4−−−−−−−−√=7
RQ=1+25+64−−−−−−−−−√=98−−√
PQ2+RQ2=49+49=98
Answer:
go on khan academy they helped out alot
Step-by-step explanation:
Answer:
x= 2/3
Step-by-step explanation:
I think... 1500
Step-by-step explanation:
multiply 30 and 25 then times 750 as your answer by 2 to get 1500
