D

a, Xét tam giac MNQ va MEQ có

góc NMQ = góc EMQ ( do MQ la tia phan giac )

MN = ME ( gt)

MQ chung

=> tam giac MNQ = MEQ( c-g-c) 

=> NQ = QE

góc MEQ = góc MNQ 

b,  Xet tam gisc HME va tam giac PMN có

ME = MN ( gt)

góc NME chung

góc MEQ = góc MNQ  ( cmt) 

=> tam gisc HME = tam giac PMN(g-c-g)

mua một hộp hết số tiền la :

180 000 :12=15000 ( đồng)

Mua 36 hộp hết số tiền la :

15000 x 36 = 540 000 ( đồng )

Vay.....

\(550-\left(x+20\right)=50\\ \left(x+20\right)=550-50\\ x+20=500\\ x=480\)

\(=3.3^3.17.2=3^4.17.2=81.17.2=2754\)

they often watchtv together

i usually go ......to bed at 11p.m

he watches  ..............TV every night

what do you do.... every day ?

i go.... to school bicycle.

the children are pLAyingfootball now

 1. I like math and she likes literature.

 2. my siter washes , the dishes every day.

\(40+\left(x+240\right)=108-8\\ 40+\left(x+240\right)=100\\ x+240=60\\ x=-180\)

\(8.100=800\)

\(\text{a},=380\left(16+15\right)-380=380.31-380=11400\\ b,=\left(72+143\right):72+14-\dfrac{1}{72}=215:72+14-\dfrac{1}{72}=\dfrac{215}{72}+\dfrac{10008}{72}-\dfrac{1}{72}=\dfrac{1222}{72}=\dfrac{611}{36}\\ c,=78-134-112=-168\\ d,=8.10+10.89=80+890=970\)