Respuesta :

ferrybukantoro

Step-by-step explanation:

Q4. A &B : 10m-16 & 2(5m-8)

Q7. 8a-(-3-5a)-2a

step 1 is error

it should be:

step 1: 8a+3+5a-2a

step 2: (8a+5a-2a)+3

step 3: (13a-2a)+3

step 4: 11a +3

the perimeter of square:

A, B & C are correct

Q5. yes, no, no, yes, yes

kjashanpreet2004

Answer:

A) option (a) i.e 10m-16

C) option (b) i.e 4(n-1.5)

E) option (a) i.e Step1: 8a+3-5a-2a

sorry I don't know the ans of ques 7 and 5

hope above ans may help you