Answer:
the answer is 527
Step-by-step explanation: trust me i just know
1) D it doesn't pass the line test
2)B
3)A C F
3(a+b) and 3a+b: not equivalent
4(x+2y) and 8y+4x: equivalent
48
Step-by-step explanation:
66*2=132
180-132=48
7
7x7=49
