Answer:
Step-by-step explanation:
To divide the 2 fractions
leave the first, change division to multiplication and turn the second upside down, that is
× ( cancel 2 and 8 by 2 and 10 and 20 by 10 )
= × ( multiply numerators and denominators )
=
1/8
3
A
They each got $3.00
7+x = 2(2+x)
7+x = 4 + 2x
-x = -3
x=3