QS =25
Step-by-step explanation:
QR + RS = QS
18 + (x-11) =2x-11
7 +x =2x -11
18=x
Plug in x
2(18) -11
36-11
QS=25
18 + (18-11) = 2(18)- 11
18+ 7 = 36 -11
25= 25
True
Answer:
QS + QR > RS
QR + RS > QS
RS + QS > QR
Step-by-step explanation:
Hope it helps you!
Answer: 
Step-by-step explanation:

Answer:
398
Step-by-step explanation:
She will have to score exactly 398 to tie the score with Anne
By the binomial theorem,

Each term containing a factor 6 is divisible by 3, since 3 divides 6. The remaining 1 and 2 sum to 3, which is also divisible by 3.