Answer:A. True, B. False, C. True, D. False
Step-by-step explanation:
A. 6.2*1.35=8.7,
8.7/6.2 = 1.35
B. X has to be 34.3 not 34.1
4.9*7=34.3 not 34.1
C. 8(3.15)-5.2=20
8(3.15)=20+5.2
8(3.15)=25.2
25.2=25.2
D. 4x-1=x+6.5 x=2.8
4x-x=7.5
3x=7.5
x=7.5/3 = 2.5
